HomeMy WebLinkAboutCUMP Draft bf comments 10.18.21 1
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Conduit
Prepared for of Bozeman,
Montana
September
Columbia Telecommunications Corporation
10 oncord Street Kensington, 1 • 2: • •
Conduit Utility Master Plan I September 2021
Contents
1 Objectives and Outcomes of the Master Plan 1
2 Municipal Funding Source Recommendations 2
2.1 Creation of a Special District 2
2.2 Special District Funding Will Cover Expenses 2
2.3 Renewal Scenarios for the Special District 3
3 Network Staffing and Governance 4
3.1 Staffing 4
3.1.1 Conduit Utility Program Manager 4
3.2 City Governance of the Conduit Utility Network 5
4 Municipal Conduit Network Standards 7
4.1 General Standards and Specifications 7
4.2 Installation Methodologies 7
4.2.1 Directional Boring Installation Specifications 8
4.2.2 Trenching Specifications 9
4.2.3 Conduit Installation Specifications 10
4.2.4 Conduit Material Specifications 11
4.2.5 Handhole Specifications 12
4.2.6 City-Owned Fiber Specifications 15
4.3 Citywide Deployment Configurations/Variations 16
4.3.1 Arterial Roadway Conduit Configuration Methodology and Specifications 18
4.3.2 Collector Roadway Conduit Configuration Methodology and Specifications 26
4.3.3 Local Roadway Conduit Configuration Methodology and Specifications 31
4.3.4 City Property and Park Trails Conduit Configuration Methodology and Specifications 38
5 Leveraging Dig Once Opportunities to Deploy Conduit Infrastructure at a Reduced Cost 39
5.1 Criteria for Dig Once Opportunities 39
5.2 Coordination With Municipal Excavation Projects 40
5.3 Coordination With Commercial Excavation Projects 40
5.4 Dig Once Specifications and Standards 44
5.4.1 Conduit Installation Not Coordinated with Another Trench 44
5.4.2 Conduit Installation Coordinated with Another Trench 47
5.5 Estimating the Incremental Cost of Adding Conduit to Existing Projects 50
5.6 Exemptions and Alternative Methodologies 58
Appendix A:City of Bozeman Conduit Asset Mapping 59
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Conduit Utility Master Plan I September 2021
Appendix B: Private Conduit Asset Mapping and Analysis 61
Appendix C:City Roadway Designations 62
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Conduit Utilh.y Master Plan I September 2021
Figures
Figure 1: Proposed Organizational Chart for Bozeman Department of Public Works—Utilities............................5
Figure2:Typical Handhole Placement Profile....................................................................................................13
Figure3:Bozeman Roadways by Type...............................................................................................................18
Figure4:Arterial Roadway Configuration Detail................................................................................................20
Figure5:36"x48"x48"Handhole Detail..............................................................................................................21
Figure6:48"x60"48" Handhole Detail...............................................................................................................22
Figure 7:Collector Roadway Configuration Detail..............................................................................................26
Figure 8:24"x36"x36"Handhole Detail..............................................................................................................27
Figure9:36"x48"x48"Handhole Detail..............................................................................................................28
Figure 10:Collector Roadway Configuration Detail............................................................................................32
Figure 11:17"x30"36"Handhole Detail.............................................................................................................33
Figure 12:24"x36"36"Handhole Detail..............................................................................................................34
Figure 13:Dig Once Process—Building Application Project Review....................................................................42
Figure14: Dig Once Process—Implementation..................................................................................................43
Figure 15:Separate Trench Parallel to City Storm Sewer Main...........................................................................46
Figure 16:Shared Trench With City Streetlight Conduit......................................................................................48
Figure 17:Shared Trench With Private Telecommunications Conduit.................................................................49
Figure 18:City of Bozeman Conduit Network Map.............................................................................................60
Figure 19:City and Private Conduit Map............................................................................................................61
Figure 20:City Roadway Designations...............................................................................................................62
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Conduit Utility Master Plan I September 2021
Tables
Table 1:Arterial Roadway Conduit Configuration—Standalone Construction Costs............................................23
Table 2:Arterial Roadway Conduit Configuration—Municipal Collaboration Construction Costs........................24
Table 3:Arterial Roadway Conduit Configuration—Incremental Joint Construction Costs..................................25
Table 4: Financial Projections of Maximum Lease Scenario—Arterial Roadways................................................25
Table 5:Collector Roadway Conduit Configuration—Standalone Construction Costs..........................................29
Table 6:Collector Roadway Conduit Configuration—Municipal Collaboration Construction Costs......................30
Table 7:Collector Roadway Conduit Configuration—Incremental Joint Construction Costs................................31
Table 8: Financial Projections of Maximum Lease Scenario—Collector Roadways..............................................31
Table 9: Local Roadway Conduit Configuration—Standalone Construction Costs................................................35
Table 10: Local Roadway Conduit Configuration—Municipal Collaboration Construction Costs..........................36
Table 11: Local Roadway Conduit Configuration—Incremental Joint Construction Costs....................................37
Table 12: Financial Projections of Maximum Lease Scenario—Local Roadways..................................................37
Table 13: Incremental Cost of Dedicated Trenching Along Arterial Roadways,No Roadway Restoration ............52
Table 14: Incremental Cost of Dedicated Trenching Along Collector Roadways,No Roadway Restoration..........53
Table 15: Incremental Cost of Dedicated Trenching Along Local Roadways, No Roadway Restoration................54
Table 16: Incremental Cost of Shared Trenching Along Arterial Roadways,No Roadway Restoration .................55
Table 17: Incremental Cost of Shared Trenching Along Collector Roadways,No Roadway Restoration...............56
Table 18: Incremental Cost of Shared Trenching Along Local Roadways,No Roadway Restoration.....................57
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Conduit Utility Master Plan I September 2021
1 Objectives and Outcomes of the Master Plan
The Conduit Utility Master Plan (Master Plan) looks to establish near-term, achievable goals to
jump-start a transformation of the City's existing conduit assets into a fully-fledged, self-
sustainable conduit utility. The primary function of the conduit utility will be to lease conduit
space to local service providers, facilitating economic development and generating revenue for
the City over time. With the unprecedented growing need for internet service in communities
across the nation, the City having its own controllable access to this utility will help Bozeman
"future-proof" its technology needs, including facilitating economic development, future Smart
City initiatives and supporting digital inclusion efforts as these opportunities present themselves.
For this effort to move forward,the Master Plan identifies and attempts to address the following
critical objectives:
• Identify municipal funding sources for the above items
• The creation of new position within the City to manage, maintain, and expand the City's
conduit network
• Development of a set of technical standards for deployment of new City conduit
• Development of a methodology to facilitate cost-effective and incremental conduit
deployment
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Conduit Utility Master Plan I September 2021
2 Municipal Funding Source Recommendations
For the City to accomplish the objectives of this Master Plan it must identify a suitable funding
source. There are several options for the City to fund the startup of a municipal conduit utility.
CTC performed consultation with the City to identify the most suitable source.
2.1 Creation of a Special District
We recommend Bozeman create a citywide special district to fund the startup, operation, and
incremental expansion of the conduit utility.
To raise adequate funding for a workable annual budget for the conduit utility, we propose a
minimum charge of $2/month be issued to the approximately 14,290 eligible units within the
City.This would raise$342,960 per year over the life of the 1�3-year funding period,totaling more
than $4.46 million.
2.2 Special District Funding Will Cover Expenses
It is expected that lease revenues initially generated by the network will not offset the cost of
operation or support any network expansion efforts.The funding from the special district would
be used to cover these expenses and would specifically be used for:
• Staffingof one new $100,000 full-time equivalent FTE�� AC q ( ) position within the City
government, a conduit utility program manager who would oversee all aspects of the
lY, conduit network's construction, operations, and expansion (see Section 3)
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S • Consulting/engineering fees ranging from strategic guidance to detailed engineering
designs estimated at an average annual amount of$75,000
• Annual maintenance of the conduit network (e.g., repairs and relocations) estimated at
habout 2 Orcent of the total network deployment cost/Pt-, -f r
• Annual locating services for the conduit network estimated at roughly$1,800 per miler
CN • Construction of new conduit, typically deployed as an incremental addition to existing
City excavation projects to minimize costs
Over the life of the 13-year funding period, the conduit utility should eventually become self-
Uri sufficient from a funding standpoint with enough lease revenue.Any additional revenue obtained
through leasing of conduit, not supporting operational expenses, could be used to continue to
expand the network or, at a time when further deployment is not required, be redistributed to
the City and the conduit network considered a financially positive asset for the City.
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Conduit Utility Master Plan I September 202.1
Cf� V 2 3 Renewal Scenarios for the Special District
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U�! Under SB385 of the City code, a special district is dissolved after 13 years. It is recommended
that, prior to the end of the 13-year period, the City reassess the success and viability of the
conduit network to determine if the special district should be renewed.
If the conduit network is deemed successful from a financial standpoint—meaning it is able to
fund its own operating expenses as well as a ditional network expansion (or act as a source of
revenue to the City instead of new deployment)-the special district may not need to be renewed
as it is no longer needed to support the conduit utility.
If the conduit utility is either self-sustainable from an operational standpoint but requires
additional funding for further expansion, or it is not sustainable without special district funding
but is considered by the City as providing an acceptable level of benefit to the Bozeman
community, the special district should be renewed.
If the conduit utility is not sustainable without special district funding and is not considered by
9�1 the City as providing an acceptable level of value to the community, the special district should
Snot be renewed. In this case, the conduit utility program manager position would no longer be
required and could be eliminated to reduce operational costs. (�
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Additionally, unprofitable portions of the utility could either be abandoned or sold and, with the
right offer, the entire network could be sold. For conduit assets with no occupancy, the conduit
could either be abandoned or sold to another entity interested in the asset. Abandoned or sold
conduit would no longer require to be located or maintained by the City, thereby eliminating
operational expenses for those portions.
For any conduit assets with active lessee(s), the lessee(s) could be offered the option of
purchasing the conduit from the City at a negotiated fee. The lessee(s) would then become the
owner(s)and be responsible for operational expenses of their portion of the assets.Alternatively,
if the lessee(s) want to take ownership of the conduit, the asset could be abandoned by the City
and the lessee(s) could either remove their fiber assets or continue to operate them with no
maintenance support from the City. It would not be expected that the City continue to collect
lease fees on sold or abandoned conduit.
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ktility Master Plan I September 2021
Network Staffing and Governance
3.1 Staffing
Dedicated staff is required for the proper management and growth of the conduit utility network.
However, given the current scale of the City network and the proposed modest incremental
growth outlined in the Master Plan,we recommend outsourcing much of the "physical" network
responsibilities such as maintenance, locates, etc., as the costs incurred for a network of
Bozeman's size would be less than if the City staffed those positions. This is a common practice
in municipal fiber and conduit networks throughout the nation and is in line with current City
practices.
I— We do recommend the City staff one new position, a conduit utility program manager, whose
overall role will be to oversee and process the daily activities required by the network. This
person hired for this position will help drive expansion of the network and continue to refine the
objectives outlined in this Master Plan. S-i- hip oh (/ S
3.1.1 Conduit Utility Pro am Man �~ ^ �� � l 1^ Lt4
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In consultation with the mayor's-office and DPW, the conduit utility program manager will
determine prioritization of -network expansion and CIP spending. The specific roles and
responsibilities of the position include: %SI
• Educate City leadership and utility stakeholders on the uses and benefits of the conduit
utility
• _Manage the conduit utility's yearly budget by balancing growth opportunities and new
construction with operational expenses
• Evaluate and prioritize new construction opportunities
• Establish a communication process with DPW department heads to effectively identify
joint construction opportunities
• Manage contracts and individual tasking of fiber construction contractor(s) for
outsourced network construction and maintenance
• Manage agreements with current conduit lessees
• Market conduit utility to prospective lessees
• Coordinate with City GIS department staff to document and manage conduit utility
records
• Communicate with real estate developers during the planning of new projects to ensure
City conduit and fiber requirements are followed
• Evaluate new fiber optic technologies and stay abreast of new developments in
telecommunications construction
• Ensure the municipal network has capacity to support current and anticipated future uses
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Conduit W iIity Master Plan I September 2021
• Contract with consultants and engineering firms to explore cost-effective avenues for
expansion and additional business opportunities(federal/State grant applications, public-
private partnership opportunities, business case analysis, etc.)
The skills associated with the position include:
• Synthesize information for reporting to senior management within the City and City
agencies, vendors, nonprofit partners, and key stakeholders
• Work independently, as well as in coordination with the DPW department managers and
mayor's office staff
• Establish and maintain effective working relationships with departmental-adminfi ators
and managers, senior program management staff, representatives of public and private
sector agencies, business and community groups, and organizations
• Critically evaluate technical input from vendors, manufacturers, and industry experts
• Supervise contractors in project settings
ON, • Write and verbally communicate effectively
. At the end of the day,it will be the conduit utility program manager's job to ensure the objectives
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i'- of the master plan are achieved.
3.2 City Governance of the Conduit Utility Network
Based on our understanding of how the City operates internally and a review of the City's
organizational charts, we feel the conduit utility program manager should be staffed in the
utilities side of the public works department directly under the director of public utilities, on the
1/ same level as other utility managers and superintendents. This placement will result in the
manager being better positioned to be made aware of other utility/excavation projects being
performed in the City,thereby allowing for better coordination early in the design phase of these
projects to capture joint construction opportunities that would otherwise be missed. Figure 1
depicts the new role within the City's organizational chart.
Figure 1:Proposed Organizational Chart for Bozeman Department of Public Works—Utilities
irector of Public
Utilites
Water/Sewer WTP Conduit Utility SCADA Stormwater Program
Superintendent Superintendent Program Manager Manager Manger
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Conduit Utility Master Plan I September 2021
With our recommendation for the City to only add one staff person, it will need to continue
outsourcing the construction and maintenance responsibilities. If the City decides to grow the
network to a point where performing construction or maintenance in-house would be more cost-
effective then outsourcing maintenance responsibilities, public works would be the best-
equipped City department to handle that work, thus being another reason for this position to be
staffed under that department. W �
In our experience, the municipal agency (IT, public works, traffic, etc.) most invested in the
network and its uses is usually responsible for operating it. For example, an IT department will
be placed in charge of a network when it also manages the connections to municipal sites and
schools. Here, it is usually determined in the City via a business case analysis that the cost of
owning and operating fiber is more advantageous than leasing services.
Similarly, a traffic department tends to run a network in jurisdictions where it also operates an
extensive signal network and is using fiber technology to operate the traffic signals. In this
situation, the local Department of Transportation usually hires contractors to do signal and fiber
construction work.
As there are no City departments that have a direct investment in the network, and all things
being equal, DPW is the best-suited location for the Conduit Network Manager position.
If placing the network utility conduit manager in the DPW is unfeasible for the City, we would
recommend this position report directly to the mayor's office, outside of the purview of any
specific department. A benefit of this approach is that the manager would receive direction from
the mayar instead of a department head who may have a different set of priorities. However,
placement outside the DPW would require the manager to establish a thorough process to
/ coordinate with DPW for joint opportunities, instead of being positioned in the department to
easily identify and capture these opportunities.
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Conduit Utility Master Plan I September 2021
4 Municipal Conduit Network Standards
Establishing network standards is important to create consistency and predictability in costs of
deployment. The City can leverage this data to make informed decisions about when and under
what scenarios conduit construction should occur. In,-this section we have outlined a set of
standards and deployment options for the City to adapt i �going forward.
4.1 General Standards and Specifications f
The design and construction of City conduit and fiber should comply with the National Electrical
Code (NEC), the National Electric Safety Code (NESC), and applicable industry standards, as well
as any and all other applicable federal, State and local laws and regulations. Methods and
techniques used to install City conduit shall be in accordance with the recommended practices
and procedures published by leading industry manufacturers and trade associations, including,
but not limited to, the following:
• Society of Cable Telecommunications Engineers (SCTE) Recommended Practices for
Optical Fiber Construction and Testing
• ANSI/TIA/EIA Telecommunication Standards (latest editions)
• National Electrical Code (NEC) (latest edition)
• Building Industry Consulting Service International (BICSI) Telecommunications
Distribution Methods Manual (TDMM) g
• BICSI Outside Plant Design Reference Manual (OSPDRM) (Latest Edition) S y�
• Telcordia Blue Book—Manual of Contractor's Procedures
• Federal Occupational Safety and Health Administration (OSHA) regulations
Installation should also follow all applicable local standards, including the MT DOT Standard and
Supplemental Specifications and the City of Bozeman Design Standards and Specifications Policy.
4.2 Installation Methodologies
It is recommended that the primary methodologies used for the deployment of City conduit are
open trenching and horizontal directional drilling (directional boring). These are industry-
standard methods used across the nation and can be used for standalone conduit deployment
and joint construction opportunities.
For standalone construction we typically we recommend the prioritization of directional drilling
over trenching, as it reduces the amount of restoration work required for conduit installation.
Trenching is recommended forjoint construction or adding conduit to an existing capital project,
in which surface restoration work will be required regardless of whether City conduit is installed.
/ PoLi ,A,( i
Additionally, the soil conditions found in Bozeman include the prevalence of "smaller" rocks
which adversely affect the directional boring method more than a standard trench. In areas
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Conduit Utility Master Plan I September 2021
where restoration costs are minimized (e.g.,green spaces)trenching should be considered as the
primary construction methodology; however, directional boring should still be prioritized for
installation under hard surfaces such as roadways, driveways, and sidewalks.
4.2.1 Directional Boring Installation Specifications
The directional boring installation methodology should be the primary underground placement
technique unless it is directed otherwise by the City or specified in the City-provided design
drawings. &%_ rtiyt.t., ,�"� i,)= , � -, ✓--
The size of a bore shall not exceed the outside diameter of the conduit(s) by more than 1 inch. If
it does, cement grout shall be pumped into the void.
Conduit shall be placed at a minimum depth of 4 feet or eight times the back-reamer's diameter,
whichever is deeper, at all points where it will pass under roadways, driveways, sidewalks, or
Controlled Access Areas, including entrance/exit ramps. The Contractor must adhere to the
minimum depth requirements specified in permit applications from City DPW or MT DOT.
Unless installed via a joint construction with another utility, conduit shall be placed to maintain
a clearance of 1 foot from all existing utilities. Additionally, the City requires 10 foot clearances ��
from these specific utilities; water mains, sanitary sewer mains, and storm sewer mains
The installer shall guarantee the drill rig operator and digital walkover locating system operator 'f j
are factory-trained to operate the make and model of equipment provided and have a minimum! Ss
one year of experience operating the make and model of drill rig. This documentation of the
operators' training and experience should be submitted for review at least two weeks before
start of directional drilling operations.When the drill rig is in use, it must be electrically grounded
accordance with the manufacturer's recommendations. During drilling operation, the drill head
must be located every 10 feet along the drill path and before traversing underground utilities or
structures using a digital walkover locating system. The locating system must be capable of
determining the pitch, roll, heading, depth, and horizontal position of the drill head at any point.
A means of collecting and containing drilling fluids/slurry must be provided for any fluid that
returns to the surface such as a slurry pit. Additional measures should be provided to prevent
drilling fluids from entering drainage ditches and storm sewer systems or accumulating on or
flowing onto pedestrian walkways, driveways, and streets. Any drilling fluids/slurry that are
accidentally spilled during the installing process must be removed immediately. All drilling
fluids/slurry from site must be transported and disposed of in a method that complies with local,
State and federal laws and regulations.
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Conduit Utility [Master Plan I September 2021
All excavated material shall be placed near the top of the working pit and disposed of properly.
Any pits and trenches created to facilitate drilling operations must be backfilled immediately
after drilling is completed.
Upon completion of the conduit installation,a test to ensure conduit has not been damaged shall
be performed on the conduit system, using a non-metallic mandrel with a diameter of
approximately 50 percent of the inside diameter of the conduit. If damage has occurred, the
entire length of conduit shall be replaced, and reinstallation of the pull line shall be ensured.
Each multi-duct conduit shall be proofed using a "shuttle test"to confirm the duct continuity and
that the duct was not damaged during installation. The installer shall verify this by blowing a
suitable shuttle (sized at 70-80 percent of the duct's inner diameter) through the duct section
i
with compressed air. The test passes if the shuttle comes out of the other end of the duct. If one
or more of the tests fail, the duct segment must be replaced at the installers expense.
4.2.2 Trenching Specifications
Where installation requires the trenching/cutting in existing pavement, the conduit must be
installed by cutting a slot in the pavement with a masonry saw. The installer of the conduit shall
be responsible for the removal of all cut pavement and the replacement and correction of any
damaged pavement once the conduit(s) are installed. All open cutting of roadways must first be
approved by the City, MT DOT, or other applicable permitting authority.
City standard conduits) shall be installed for all trenches unless otherwise specified by
engineering drawings for special conditions (e.g., where conduits cross beneath railroad tracks).
If more than one conduit is required per the City standards, those conduits shall be installed in
one common trench. Non-detectable warning tape shall be installed in each trench directly above
I, the conduit run at a depth of approximately 24 inches below existing grade. Warning tape shall
be bright (Day-Glo) orange and 3 inches (or 75 mm) wide to allow for easy visual detection with
the words "WARNING —OPTICAL CABLE" or similar message approved in advance, repeated on
tape at least every 3 feet or 1 meter.
All rock and debris from backfill material must be removed to avoid damaging the conduit during
backfilling. Any excess material from site must be removed and properly disposed of. The
Contractor shall backfill with excavated material and compact to 95 percent of original density
per AASHTO T-180. The purpose of the backfill is to provide a gradual change in elevation of the
trench so that excessive bending and stress will not be transferred to conduits once underground
conduit system is installed.
For paved streets,the asphalt shall be replaced as soon as possible, if not immediately after work
is completed.When weather conditions do not permit the use of hot mix,either cold mix or Class
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Conduit Utility Mister Plan 5 emb 1
M-3000 concrete shall be used and replaced with hot mix as soon as possible, but no later than
30 days after the batch plant re-opens for the season.The depth of the asphalt patch shall match
the existing pavement depth but shall be not less than 3 inches compacted depth.
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The installer will be responsible for maintenance of the hot mix patch for one year from the
installation date. If the installer does not perform the repair within five working days of written
or verbal notification, the City may make the repair and charge the permittee.
Upon completion of the conduit installation and backfill, a test to ensure conduit has not been
damaged shall be performed on the conduit system, using a non-metallic mandrel with a
diameter of approximately 50 percent of the inside diameter of the conduit. If damage has
occurred, the Contractor shall replace the entire length of conduit at no cost to the City. The
Contractor shall ensure that the pull line is re-installed.
Each multi-duct conduit shall be proofed using a "shuttle test" to confirm the duct continuity and
that the duct was not damaged during installation. The installer shall verify this by blowing a
suitable shuttle (sized at 70-80 percent of the duct's inner diameter) through the duct section
with compressed air. The test passes if the shuttle comes out of the other end of the duct. If one
or more of the tests fail the duct segment must be replaced at the installers expense.
When trenching is used to install conduit along unpaved surfaces (e.g.,green space)the opening
shall be filled halfway with the cover material and tamped down firmly before filling in the
remainder of the opening to 18 inches below grade.
A fiber optic warning tape shall be installed and the remainder of the fill shall be added, tamping
down the top layer. The Contractor shall install non-detectable warning tape in each trench
directly above the conduit run at a depth of approximately 18 inches below existing grade.
Warning tape shall be bright (Day-Glo) orange and 3 inches (or 75 mm) wide to allow for easy
visual detection with the words, "WARNING — OPTICAL CABLE" or similar message approved in
advance, repeated on tape at least every 3 feet or 1 meter.
The Contractor shall rake smooth the top 1.5 inches, and seed with same type of grass as the
surrounding area. Finish unpaved areas flush with surrounding natural ground. 1 '
4.2.3 Conduit Installation Specifications
Unless otherwise specified by the City engineer or City-approved engineering drawings, conduit
shall have a minimum cover of 42 inches as measured from the finished grade. Conduit not
terminated in a handhole shall be terminated 2 feet beyond the edge of the finished grade
otherwise directed by the City. Conduit shall not extend more than 3 inches inside a handhole.
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CGnClllit. Utiky Master Plan I September 2021
Splicing or joining of conduit is prohibited without prior approval from the City. If joining is
required, all conduit joints shall be sealed with the appropriate cement to ensure that the two
conduit pieces bond to one another to form a solid waterproof link.
For locating purposes,a tracer wire, made of 12 AWG copper wire and UL-listed,shall be installed
in at least one conduit in each segment or conduit bank upon placement of the conduit. The
tracer wire shall be placed in a continuous length along the conduit path at the same time or
directly after the conduit installation. Where multiple conduits are placed in the same trench or
bore, only one tracer wire is required. Where multiple conduits are separated into individual
trenches or bores, a tracer wire must be installed in each conduit run.
For all conduits entering handhole boxes, occupied conduits must be sealed and spare conduit
ends must be fitted with approved duct plugs.
All conduit bends shall have a minimum radius of no less than 10 times the outer diameter of the
conduit. Where possible, sweeping bends with a bend radius of 36 inches or more shall be used.
No individual conduit segment between two handholes shall have more than 180 degrees of total
bends. The City engineer shall be consulted before any bends are installed to ensure that the
proper arc is provided. '\ � ; M
4.2.4 Conduit Material Specifications
The City's standard conduit materials include a combination of more traditional "single channel"
conduit and a more modern multi-channel conduit product featuring seven "micro-ducts" in a
single sleaved outer casing. These conduits are deployed in multiple configurations containing
one or more of each type of conduit based on the needs of the municipal network. ✓A 4-1 L� , ^
For "traditional" conduit, the City requires high-density polyethylene (HDPE) roll duct meeting
applicable ASTM standards. All conduit must have a smooth inner wall and smooth outer wall
and be pre-lubricated. Each conduit must contain a pre-installed 1,100-pound polyester pull tape,
if not supplied this way by the manufacturer an equivalent pull tape must be installed
immediately after the conduit installation is completed.
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Conduit Uliiity Master Plan I September 2021
Acceptable conduit includes the following varieties:
• 1.25-inch diameter HDPE conduit
o Meets or exceeds pressure requirements of SDR 11
0 1.660-inch nominal outer diameter
0 1.358-inch nominal inner diameter
0 0.151-inch minimum wall thickness
o Carlon#A6C6D11NNB or City approved equivalent
• 2-inch diameter HDPE conduit
o Meets or exceeds pressure requirements of SDR 11
0 2.375-inch nominal outer diameter
0 1.943-inch nominal inner diameter
0 0.216-inch minimum wall thickness
o Carlon #A13C6D1JNNB or City approved equivalent
The City uses Duraline 7-way Futurepath as its standard multi-duct conduit and deploys the
following variety in its network:
• Duraline 7-way Futurepath 22/16
0 2.62-inch nominal outer diameter
o .61-inch minimum microduct inner diameter
o Built-in 20 AWG copper wire for locating „ Q `►
J,2, ` Handhole Specifications
The City standards require that all handholes meet the dimensional and structural loading
requirements specified by City-approved engineering drawings as well as all applicable permit
requirements. Additionally, all handhole lids must be appropriate for the specified loading
requirements.
All handholes shall be straight-walled with an open bottom. Handholes must have the
appropriate ANSI 77-2010 Tier designation/load rating and/or AASHTO Load Rating embedded in
a surface that will be visible after installation.
The majority of the municipal conduit network is intended be placed within the City utility
(/ easements, or when required, the public right-of-way(ROW) adjacent to the roadway. For these
instances ANSI/SCTE Tier 15 or Tier 22 handholes will be used.
In rare instances where a conduit access point would be required in the roadway, vaults and iron
'/vault lids meeting AASHTO HS-20 are required. Placement of a vault within a roadway must be
Concluit Utility Master Plan September 2021
approved by the City engineer and can only be granted after all reasonable attempts to relocate
the vault outside of the roadway are exhausted.
Handholes shall each be provided with a lid, lid bolts, and any required reducing coupler to
support 2-inch and 1.25-inch nominal diameter conduit. Supplied lids shall be engraved with the
words "City Fiber." C i�_I d) t("t _N
Handholes shall be installed according to the following specifications (see Figure 1 for additional
detail):
• An electrical ground rod shall be installed in all vaults.
• Conduit shall enter vaults from the sidewall through openings created per manufacturer
instructions to retain the associated load rating. Conduits shall protrude beyond the
interior wall of the vault by a minimum of one inch, and no more than three inches.
• Vaults shall be installed flush with grade on a six-inch bed of#57 crushed stone or gravel.
An additional one inch to two inches of stone shall be placed inside the base of the vault.
• A minimum of 12 inches of select,compacted backfill must surround the vault on all sides.
Backfill must not contain large rocks or chunks, and there should be no voids between the
vault sidewalls and the native surrounding soil.
Figure 2:Typical Handhole Placement Profile
Min 12" Min 12" Compacted select
backfill
° YX o
6
O . o
°0 Ground
20 gauge insulated rod clamp
°O tracerwire
0
.o / o
0 0
CPO \ o
[0 \\ °p
42-inch minimum
depth
Dura-line 0
Futurepath ° j ° O O 00 o ' °.
O ° o
7 Way o 8 0 o b . 0 0 0
°, °a
o ° 0 °O ° 0 0
o o o
O O 00 o O O
6 bed of#57 5/8-inch diameter
crushed stone ground rod,8 foot
length,
13
Conduit Utility Master Plan September 2021
Acceptable network handholes include the following varieties:
• Tier 15, 17"00"06" Handhole
o Tier 15-rated (15,000-pound vertical design load, 22,500-pound test load)
o Composite construction, UL listed to ANSI 77-2010
o Nominal dimensions: 17"x30"x18" (WxLxD)
o RUS listed
o Straight-walled, open bottom
• Tier 15, 24"x36"x36" Handhole
o Tier 15-rated (15,000-pound vertical design load, 22,500-pound test load)
o Composite construction, UL listed to ANSI 77-2010
o Nominal dimensions: 24"x36"x36" (WxLxD)
o RUS listed
o Straight-walled, open bottom
• Tier 22, 24"x36"x36" Handhole
o Tier 22-rated (22,500-pound vertical design load, 33,750-pound test load)
o Composite Construction, UL listed to ANSI 77-2010
o Nominal dimensions: 24"x36"x36" (WxLxD)
o RUS listed
o Straight-walled, open bottom
• Tier 15, 30"x 48"x48" Handhole
o Tier 15-rated (15,000-pound vertical design load, 22,500-pound test load)
o Composite construction, UL listed to ANSI 77-2010
o Nominal dimensions: 30"x48"x36" (WxLxD)
o RUS listed
o Straight-walled, open bottom
• Tier 22, 30"x 48"x48" Handhole
o Tier 22-rated (22,500-pound design load, 33,750-pound test load)
o Composite construction, UL listed to ANSI 77-2010
o Nominal dimensions: 30N48"06" (WxLxD)
o RUS listed
o Straight-walled, open bottom
• Tier 15, 48"x 60"x48" Handhole
o Tier 15-rated (15,000-pound vertical design load, 22,500-pound test load)
o Composite Construction, UL listed to ANSI 77-2010
o Nominal dimensions: 48"x60"x48" (WxLxD)
141
Conduit Utiliiy Master Plan I September 202.1
o RUS listed
o Straight-walled, open bottom
Tier 22, 48"x60"x48" Handhole
o Tier 22-rated (22,500-pound design load, 33,750-pound test load)
o Composite construction, UL listed to ANSI 77-2010 ;—
o Nominal dimensions: 48"x60"x48" (WxLxD) c>t
C'C
o RUS listed
J�' r
o Straight-walled, open bottom ���
Handholes without a UL listing may be used by the City network only when accompanied by test
data reports demonstrating comparable independent, third-party testing to ANSI 77 standards.
This will be approved on a case-by-case basis by the City engineer.
4.2.6 City-Owned Fiber Specifications
In instances where a fiber optic cable is installed in conduit on behalf of the City and is
subsequently owned by the City, the process must conform to the standards detailed below.
For installations of all fiber in underground conduit,a strain limiter/release element that will part
if the strain exceeds the manufacturer's recommended limit shall be used for placement of all
outdoor fiber optic cable. The limiter/release element must be placed between the pulling grip
and the pulling medium. All cable(s) pulled into any conduit without the use of an acceptable
pulling grip, or without the use of a strain limiter/release element, or by using methods which
may result in pulling forces in excess of strain release material set forth herein or prescribed by
industry standards are unacceptable. Any and all cable(s) installed in violation of allowed
methodology shall be removed and replaced with new cable(s) using correct methods at no cost
to the City.
All cables shall be labeled in each handhole using pre-printed wrap-around cable labels in Day-
Glo orange. Labels shall be 4"x4", William Frick P/N WFS-ES-0004 or approved equivalent, and
shall read "City Fiber Optic Cable," and shall identify the cable direction at each splice or
termination poi t by indicating the next adjacent splice or site for each cable segment.
Slack loops sh-1ll be installed in each handhole location specified by City-approved engineering
drawings, obs rving the minimum bend radius specified by the cable manufacturer at all times.
N
b
15 I
Conduit Utftty Master Plan I September 2021
Fiber cables used in the network must be loose buffer tube optical cable, containing 12-strand
buffer tubes in 48-count sheaths, conforming to international standards ITU-T G.652.D and
Telcordia G-20. Additionally, the fiber cable must conform to the following specifications:
• Comprised of All Dielectric (AD) materials.
• Comprised of a gel-free cable design incorporating dry water-blocking elements.
• Marked, in permanent white characters, with:
o Manufacturer name
o Month and year of manufacture
o Number of optical fibers
o Sequential length markings, minimum of every two feet, in feet
4.3 Citywide Deployment Configurations/Variations
It is common in municipal conduit deployment, especially those with a flexible design intended
to maximize leasing opportunities, to take a varied approach in both quantity and types/sizes of
/conduit. Usually, conduit capacity requirements are dictated by the expected demands on the
./ network. For example, in a purpose-built network designed for providing fiber to municipal sites
only, larger capacity is allocated to the network backbone/trunk routes as they serve multiple
locations, smaller capacity is allocated for lateral routes that serve only a handful of locations,
and even less capacity is allocated for small laterals serving a single site.
In a network such as Bozeman's, which is designed primarily for leasing conduit space and
generating revenue, the allocation of capacity is determined by estimating the lease potential of
a given route. It is not probable that conduit lease demand would be consistent across all areas
of the City or even along different roads within the City.
We recommend that the City employ multiple conduit configurations throughout the City to
L ensure sufficient capacity in areas where more opportunities could exist while also deploying
conduit in as cost-effective manner as possible.
To achieve this, each new conduit deployment opportunity should be reviewed for potential
lease opportunities on a case-by-case scenario prior to finishing that specific project's design. In
each instance that project's total capacity, and by extension its conduit configuration, should be
determined in response to the estimated leasing opportunities of that given route.
As an initial guideline for this analysis, we recommend that the City utilize a specific conduit
configuration (meaning total capacity) to match the City's various roadway designations.
v-More specifically, we recommend that larger capacity routes be built along "arterial" roadways
(principal/minor), medium capacity routes be built along "collector" roadways and the smallest
16
Conduit Utility Master Plan I September 2021
capacity routes be constructed along "local" roadways. The United States Federal Highway
Administration defines these roadway types as the following:
• Arterial: Roads that offer superior connectivity with the greater road system, providing
advanced mobility through both rural and urban areas.
V • Collector: Collector roads serve land access and traffic circulation in both rural and urban
areas, connecting local roads to arterial roads and provide access to neighborhoods and
not served by arterial roads.
• Local: Local roads are not intended to be used for long distance travel and are connected
to arterials via collector roads.
To understand the reasoning behind this assertion we cite the similarities between utility
networks and roadway networks.Typically, most utilities tend to run parallel to roadways; this is
largely in part to the prevalence of the roads and public rights-of-way. Roadways also allow for
easier transportation of equipment needed in utility maintenance and provide the utility owners
with easy access to their assets.
Utility networks tend to be structured in a similar manner as roadways, with more traffic
requiring more capacity, and capacity driven by demand.
In a network designed to prioritize lease opportunities, specifically a middle-mile network
focusing on connecting businesses, target lessees would prioritize direct routes to areas with
businesses.
As seen below in Figure 2, arterial roads traverse Bozeman in the most direct fashion, passing by
many businesses and thus should generate the most opportunities, followed by collector roads,
and local roads providing the least amount of middle-mile leasing opportunities.
17 I
Conduit Utility Master Plan September 202.1
Figure 3: Bozeman Roadways by Type
°ry I. ni _ a d
A
Miles }� l` A
0 2\ 3 14 ,�{ 1 I
-- — City Conduit Routes Arterial Roads Collector Roads Local Roads City Lints
Be map:
System:NAD 1983 UTh1 Zone 12N map:ESRI World Topographic tAap Created by:CTC Techrwlogy 8 Energy,20210913 Data Sources:Cfrenl.Inlemal
/
!/ Based on the City's GIS records obtained in May 2021 the City currently has approximately 136
miles of arterial roadway, 81 miles of collector roadway and 381 miles of local roadways.
While this is not an exact means of determining the untapped lease potential of a given route, it
is a good starting point for the City in making a standardized approach to conduit deployment.
4.3.1 Arterial Roadway Conduit Configuration Methodology and Specifications
We recommend the City deploy its largest capacity configuration along arterial roadways. This
,;configuration would be comprised of one Duraline 7-way Futurepath multi-duct & one 2" HDPE
conduit. In this configuration, the multi-duct serves the primary leased conduit and will provide
the City with an opportunity for up to seven lessees along a single route.
The addition of the single 2" conduit serves multiple purposes for the network beyond just
additional lease capacity. Its primary purpose offsets the shortcomings of the multi-duct, which
does not allow for multiple fiber cables to be placed in the same duct due the reduced channel
18 �
4- N 6
,7 ,ndi. l V Master Plan September 2021
size.!This limitation would require prospective lessees looking to connect their fiber to the
municipal network to do one of the following:
• Overbuild the City network to reach an agreeable splice location, which may be cost-
prohibitive for the lessee, thereby discouraging use of the network
• Lease a second micro-duct in the conduit system to reach an agreeable splice location on
the network, effectively doubling their recurring costs over the given length, which,
depending on the length of the redundant run, may be cost-prohibitive for the lessee,
thereby discouraging use of the network
• Introduce additional splice in the conduit network using up valuable handhole capacity in
the network that could be used for adding new lessees to the network.
The inclusion of the 2" conduit would allow lessees to run their lateral (redundant) fiber cables
in a separate conduit, keeping the seven primary ducts open for dedicated, or even reserved,
use. The secondary two-inch conduit can be leased out on a first-come-first-served basis at a
reduced rate for those that are already leasing "parallel" conduit in the multi-duct pathway. We
recommend charging somewhere between 50 percent and 75 percent of the standard rate for
this type of lease.
Additionally, the 2" conduit could attract prospective lessees who would normally not be
interested in the multi-duct due to their own limitations on fiber cable size (multi-duct requires
Vits own special type of fiber). Lessees who would lease this conduit as their main route in
Bozeman's conduit network should be charged at a higher rate then what the City charges for
the multi-duct. We recommend charging somewhere between 150 percent and 200 percent of
the standard rate for this type of lease.
19 I
i
Figure 4:Arterial Roadway Configuration Detail
Telecommunications Conduit Network—Arterial Roadway Configuration Detail
INSTALLATION AND CONSTRUCTION NOTES:
GRADE
1.Typical City communications conduit shall consist of
one(1)Dura-Line Futurepath 7 way 22/16 conduit& 0 o O °
one(1)2-inch SDR 11 HDPE Conduit. 0 0
0 0 0 0 0 0
2.Conduit shall be placed with a minimum of 42-inches ,
0
of cover below grade. 00 •0 0 d• 0 0
E, o
3.Trenchless construction methods(i.e.directional 0
0 0 00 a' .
boring)shall be used unless prior written approval from o °0 DURA-LINE FUTUREPATH 7 WAY 22/16
the City of Bozeman Public Works Department 0 CONDUIT WITH 20 GAGE TRACE WIRE.
° 0
° 0 0
0 0
0.
0 00 ° o
0 0 O o 2-INCH SDR 11 HOPE
o 0 CONDUIT
O
o o
0 0 00 .
0 0 0 0 0
• o
0 0 0
Along arterial roadways, handholes will be placed as access points for lessees to enter the
network. Additional handholes are required at regular intervals between these access points to
facilitate the pulling of lessee fiber through ducts and provide storage of slack fiber needed for
network maintenance and splicing applications.
In practice, the actual placement of network handhole locations between conduit will vary based
on the final design drawings of each route and will account for various factors including easement
and ROW boundaries, location of existing utilities, prevalence of hard surfaces, and proximity to
serviceable businesses and other lease opportunities. We recommend that for this conduit
configuration, handholes be spaced approximately 500 feet apart on average. This is consistent
with a middle-mile build and should provide the network with ample access points to connect
with potential lessees.
Give the anticipated capacity requirements we recommend that the following handhole types be
used for this configuration:
The minimum size handhole placed along arterial roadways should be 36"x48"x48" (WxLxH).This
size will have ample capacity to house the multiple slack storage cables which will be required in
any scenario where multiple lessees are occupying the same pathway. Additionally, this size
handhole can accommodate one or two splice enclosures, each allowing for multiple lessees to
enter or exit the municipal network at the same location.
20
Curicluit Utility Master Plan I Sepiember?021
Figure 5:36"08"08"Handhole Detail
Telecommunications Handhole Detail(36"x48"x48")
INSTALLATION AND CONSTRUCTION NOTES: Too View
Typical Ground
1.An electrical ground rod shall be Installed in all vaults. i Rod Placement
Ground rods shall be comprised of 13-mil copper-clad steel,
5/8-inch diameter,minimum 8-foot length.Ground rod shall
be tested to have an electrical resistance toground of 25 \LCrushed
dit
ohms or less. nt
Stone
2.Vaults shall be of a composite,straight-walled
construction,UL-listed to ANSI 77-2010 and Tier 22load-
rated Quazite(tIPG3648BA48)or approved equivalent,
Vaults shall have external dimension ofapproximately 36"x Mintz^ Min 12• Compacted select
48"x 48"(W%L%D)and shall have a bolt down cover. Side View bacIl
3.In order to retain the associated load rating of the Vault,
conduit sha ll enter vaults through the open bottom of the j7C7; 36"x48"x48"
vault or openings created per manufactu rer instructions. " '':X
Conduits shall protrude beyond the Interior wall of the vault °>' '� Ground
by minimum of 1-inch,and no more than 3-Inches. .0 7:n, 20 eau`e imulated rod damp
°0a vaarwlre
4.Vaults shall be Installed flush with grade on a 6-Inch bed of Mumap.i \ ); 42-lnch mnimum
457 crushed stone or gravel. con,!Wd') o ) �C depth
5.A minimum of 12-inches of select,compacted backflll I
ab `,
must surround the vault on all sides.Backfill must not
contain large rocks or chunks,and there should be no voids
between the vault sidewalts and the native surrounding soil. o• n o 0 o s
o u 6.Any removal or replacement of concrete,asphalt,or soil ° o •o
necessary for vault placement shall be performed In •
accordance with federal,state,and or local construction 6"bed of 457 0 \ 5/8-Inch diameter
standards. crushed stone
ground rod,8-foot
Length
We recommend increasing the handhole size to 48"x60"x48" (WxLxH) at specific congestion
points where the network has a high probability of multiple lessees (e.g., intersections of two or
more arterial roadways). It can be expected the handholes located at these network junction
points would be ideal for lessees to route their network in multiple directions, leading to the
need for multiple splice cases in a single handhole.
21 I
Conduit Utility Master Plan I September 2023
Figure 6:48N60"48" Handhole Detail
Telecommunications Handhole Detail(48"x60"x48")
Tao View
INSTALLATION AND CONSTRUCTION NOTES: Typical Ground
i Rod Placement
1.An electrical ground rod shall be installed in all vaults.
Ground rods shall be comprised of 13-mil copper-clad steel,
5/8-inch diameter,minimum 8-foot length.Ground rod shall Typical Cordit
be tested to have an electrical resistance toground of 25 Placement
ohms or less.
LL �#57 Crushed Stone
2.Vaults shall be of a composite,straight-walled
construction,UL-listed to ANSI 77-2010 and Tier 22 load-
rated Quazite(HPG4860BA48)or approved equivalent.
Vaults shall have external dimension of approximately 48"x Mtn 12" M1n12'
60"x 48"(WxLxD)and shall have a bolt down cover. Side View
3.In orderto retain the associated load rating of the Vault,
conduitshall enter vaults through the open bottom of the 48"x60"x48" '. %�
vault or ope rings created pe r ma nufactu re instructions. yX„ Compacted select
Conduits shall protrude beyond the interior vrall of the vault Ground backfill
by minimum of 1-inch,and no more than 3-inches. XX
zo¢.u¢e Insulted rodd.mp
o-.rerwo-e �� y,
4.Vaults shall be installed Rush with grade on a 6-inch bed of Munlcip.i depth minimum
q57 crushed stone or gravel. condwtl,I depth I
n
5.A minimum of 12-inches of select,compacted backfill I �I - n
must surround the vault on all sides.Backfill must not
contain large rocks or chunks,and there should be no voids
between the vault sidewalls and the native surrounding soil. ° /..o
oobb ° o
6.Any removal or replacement ofconcrete,asphaltorsoil o ° ° onecessary for vault placement shall be performed in °
accordance with federal,state,and or local construction 6"bed of N57 \ 5/8-inch diameter
standards. crushed stone ground rod,8-foot
Length
i
Due to the increased capacity requirements of this configuration, we expect that conduit routes
along arterial routes will be the most expensive to construct, however they also have the highest
lease revenue potential on any route.
Table 1, Table 2, and Table 3 below detail typical Bills of Labor, Materials and Costs for
constructing one mile of the arterial roadway conduit configuration via the following scenarios:
• Standalone construction using the directional drilling installation method
• Collaborative construction with other municipal projects where trenching can be utilized
without additional restoration costs
• Joint construction where the municipal conduit is just an incremental cost to the existing
utility project.
Under the guidelines of this master plan, City conduit deployment should mainly be performed
using the two latter scenarios.
22
Concluk Utility Master Plan I `,epterober2021
Table 1:Arterial Roadway Conduit Configuration—Standalone Construction Costs
Descri p tion Unit Price Estimated Extended
Quantity Price
UNDERGROUND CONDUIT&HANDHOLE INSTALLATION
Installation of ground rod EA 11 $35.00 $385.00
Installation of one 2-inch conduit and one City multi-duct
using directional boring FT 5,280 $45.00 $237,600.00
Installation of handhole—Tier 22,36"x48"x48" EA 10 $1,000.00 $10,000.00
Installation of handhole—Tier 22,48"x60"x48" EA 1 $1,500.00 $1,500.00
CONDUIT MATERIALS
2-inch,SDR 11, HDPE roll duct FT 5,280 $1.20 $6,336.00
7-way Duraline multi-duct FT 5,280 $3.00 $15,840.00
HANDHOLES MATERIALS
Handhole—Tier 22,36"x48"x48" EA 10 $942.00 $9,420.00
Handhole—Tier 22,48"60"x48" EA 1 $1,440.00 $1,400.00
CONSTRUCTION HARDWARE
Ground rod,8 ft. EA 11 $30.00 $330.00
#10 copper tracer/ground wire,green insulation FT 5,280 $0.36 $1,900.80
Markers,soil disk or dome post EA 11 $30.00 $330.00
TOTAL COST: $285.081.80
23
ConclUit Utility Master Plan I Septrmher 70.-"!
Table 2:Arterial Roadway Conduit Configuration—Municipal Collaboration Construction Costs
Estimated Extended
Description Unit Price
Quantity Price
UNDERGROUND CONDUIT&HANDHOLE INSTALLATION
Installation of ground rod EA 11 $35.00 $385.00
Installation of one 2-inch conduit and one City multi-duct FT 5,280 $9.00 $47,520.00
in new trench
Installation handhole—Tier 22,36"x4811x48" EA 10 $1,000.00 $10,000.00
Installation handhole—Tier 22,48"x60"x48" EA 1 $1,500.00 $1,500.00
CONDUIT MATERIALS
2-inch,SDR 11, HDPE roll duct FT 5,280 $1.20 $6,336.00
7-Way Duraline multi-duct FT 5,280 $3.00 $15,840.00
HANDHOLES MATERIALS
Handhole—Tier 22,36"x48"x48" EA 10 $942.00 $9,420.00
Handhole—Tier 22,48"x60"x48" EA 1 $1,440.00 $1,400.00
CONSTRUCTION HARDWARE
Ground rod,8 ft. EA 11 $30.00 $330.00
#10 copper tracer/ground wire,green insulation FT 5,280 $0.36 $1,900.80
Markers,soil disk or dome post EA 11 $30.00 $330.00
TOTAL COST: $95,001.80
24
CoIIchIit Utility IVlaster Plan I September 2021
Table 3:Arterial Roadway Conduit Configuration—Incremental Joint Construction Costs
Unit Price
Description Estimated Extended
p
Quantity Price
UNDERGROUND CONDUIT&HANDHOLE INSTALLATION
Installation of ground rod EA 11 $35.00 $385.00
Installation of one 2-inch conduit and one City multi-duct FT 5,280
in existing trench $4.00 $21,120.00
Installation of handhole—Tier 22,36"x48"x48" EA 10 $1,000.00 $10,000.00
Installation of handhole—Tier 22,48"x60"x48" EA 1 $1,500.00 $1,500.00
CONDUIT MATERIALS
2-inch,SDR 11, HDPE roll duct FT 5,280 $1.20 $6,336.00
°t 7-Way Duraline multi-duct FT 5,280 $3.00 $15,840.00
HANDHOLES MATERIALS
1 Handhole—Tier 22,36"x48"x48" EA 10 $942.00 $9,420.00
Handhole—Tier 22,48"x60"x48" EA 1 $1,440.00 $1,400.00
CONSTRUCTION HARDWARE
Ground rod,8 ft. EA 11 $30.00 $330.00
#10 copper tracer/ground wire,green insulation FT 5,280 $0.36 $1,900.80
Markers,soil disk or dome post EA 11 $30.00 $330.00
TOTAL COST: $68,601.80
If we look at the maximum potential lease revenue that could be generated on a per-rpile basis
over the next five years for this configuration, the City could generate up to $55,OOO a year by FY
26, using the City's documented lease rates. This is if we assume the maximum lease scenario
where all seven channels of the multi-duct are leased and three separate lessees are using the 2"
duct for lateral runs. In that scenario, we can calculate the following:
Table 4: Financial Projections of Maximum Lease Scenario—Arterial Roadways
FISCAL YEAR FY 22 FY 23 FY 24 FY 25 FY 26
Annual lease rate per mile for one microduct of
the City's multi-duct conduit $4,814 $5,055 $5,307 $5,573 $5,851
Maximum total multi-duct lessees 7 7 7 7 7
Proposed annual lease rate per mile for lateral
access in the 2"conduit $3,611 $3,791 $3,981 $4,180 $4,389
Maximum anticipated lateral conduit lessees 3 3 3 3 3 { ,
TOTAL PER-MILE LEASE REVENUE: $44,531 $46,758 $49,092 $51,551 $54,124 \/
25 I
Conduit Utility Master Plan I September 2021
4.3.2 Collector Roadway Conduit Configuration Methodology and Specifications
Along collector roadways we recommend the City deploy a moderate capacity configuration
comprised of one Duraline 7-way Futurepath multi-duct.
Typically, collector roadways take direct paths across the City but tend to not pass as many
businesses, and therefore may garner fewer leasing opportunities for the City. However, lessees
may use these roads to directly bypass portions of the City they do not intend to serve in order
to reach areas with customers. To meet this type of demand, the focus for collector roads is to
prioritize the seven primary pathways and forego the additional capacity required for lateral
connections.
Figure 7:Collector Roadway Configuration Detail
Telecommunications Conduit Network—Collector Roadway Configuration Detail
INSTALLATION AND CONSTRUCTION NOTES:
GRADE
1.Typical City communications conduit shall consist of
one(1)Dura-Line Futurepath 7 way 22/16 conduit. p o O 0
0
0
2.Conduit shall be placed with a minimum of 42-inches 0 o O 0 0 0
of cover below grade. '
00 o
o O d• 0
3.Trenchless construction methods(i.e.directional 0
'�• 0
boring)shall be used unless priorwritten approval from °0 . °
O 0 a;
the City of Bozeman Public Works Department o °O DURA-LINE FUTUREPATH 7 WAY 22/16
CONDUIT WITH 20 GAGE TRACE WIRE.
0 0 0
0 0 0
0 0
o°
0 00 0 0. 0
O O 00
O
o _ 0 p
o o
0 0 00 .
0 0 o O 0
• °• .
0 0 0
As with the arterial roadways, we recommend for this conduit configuration that handholes be
spaced approximately 500 feet apart on average. This distance is consistent with a middle-mile
build and should provide the network with ample access points to connect with potential lessees.
Given the anticipated capacity requirements we recommend that the following handhole types
be used for this configuration:
Handholes with dimensions of 24"06"06" should be the minimum size placed along the route
-` to accommodate multiple slack coils for various providers.
26
Condtlit Utility Plaster flan I September 2021
Figure 8:24"x36"x36"Handhole Detail
Telecommunications Handhole Detail(24"06"06")
INSTALLATION AND CONSTRUCTION NOTES: Too View
Typical Ground
1.An electrical ground rod shall be Installed In all vaults. i Rod Placement
Ground rods shall be comprised of 13-mil copper-clad steel, O
5/8-inch diameter,minimum 8 foot length.Ground rod shall L#57 Cruhed StoneTypical Condit
be tested to have an electrical resistance to ground of 25Placement
ohms or less. s
2.Vaults shall be of a composite,straight-walled
construction,UL-listed to ANSI 77-2010 and Tier 22load-
rated Quazite(NPG2436BA36)or approved equivalent.
Vaults shall have external dimension of approximately24"x Mint2• Mlnt2" Compacted select
36"x 36"(WxLxD)and shall have a bolt down cover. Side View backflll
3.In orderto retain the associated load rating of the Vault,
conduit shall entervaults through the open bottom of the
vault or openings created per manufacturer Instructions. u x .L�R.
Conduits shall protrude beyond the interior wall ofthe vault Ground
by a minimum of 1-inch,and no more than 3-inches. °Q 20gauge Insulated rod damp
at, tracerwlre f. °
4.Vaults shall be installed flush with grade on a 6-Inch bed of / X
N57 crushed stone or gravel. °.o ��<0
S.A minimum of 12-inches of select,compacted backfill o°
must surround the vault on all sides. Backfill must not
°� 42-Inch minimum
contain large rocks or chunks,and there should be no voids depth
oura-line
between the vault sidewalls and the native surrounding soil. ruturepath '7-o�,.O
° °o
sway 8o b b c
6.Any removal or replacement of concrete,asphalt,orsoil I ° a o0 °necessary for vault placement shall be performed In o °oeaccordance with federal,state,and or local construction 6"bed of N57 5/8-inch diameter
standards. crushed stone
ground rod,8 foot
length,
We recommend-increasing `ie handhole size to 36"x48"x48" at locations where splicing might
e required b" pically, these locations would be where collector roadways meet or
intersect arterial �oadways or at one location every mile along a collector roadway.
U
27 I
Conduit Utility Master Plan I September 2021
Figure 9:36"08"x48"Handhole Detail
Telecommunications Handhole Detail(48"x(50"x48")
Ton View
INSTALLATION AND CONSTRUCTION NOTES: Typical Ground
i Rod Placement
1.An electrical ground rod shall be Installed in all vaults.
Ground rods shall be comprised of 13-mil copper-clad steel,
5/8-inch diameter,minimum 8-foot length.Ground rod shall LLIical Condit
be tested to have an electrical resistance to ground of 25 lacement
ohms or less.
Crushed Stone
2.Vaults shall be of a composite,straight-walled
construction,UL-listed to ANSI 77-2010 and Tier 22load-
rated Quazite(NPG4860BA48)or approved equivalent.
Vaults shall have external dimension of approximately 48"x Min lr min 12•
60"x 48"(WxLxD)and shall have a bolt down cover. Side View
3.In orderto retain the associated load rating of the Vault,
conduit shall entervaults through the open bottom ofthe 11,x60"x48" ��
vault or openings created per manufacturer Instructions. Compacted select
Conduits shall protrude beyond the Interior wall ofthe vault Ground Y. backfill
bya minimum of 1-inch,and no more than 3-Inches. 20 pu`.iruw.ted rod d,n,p
tnoerwtre X,
4.Vaults shall be installed Rush with grade on a 6-inch bed of M-iciwl 42-In,h mnlm
tI57 crushed stone or gravel. conduit(,) depth
S.A minimum of 12-inches of select,compacted backfill
must surround the vault on all sides.Backfill must not
contain large rocks or chunks,and there should be no voids
between the vault sidewalls and the native surrounding soil. ° ° ° �O o °
°P °6. u •°
6.Any removal or replacement of concrete,asphal4 or soil ° • ° ° o ° o
necessary for vault placement shall be performed In o .°
accordance with federal,state,and or brat construction 6"bed of 457 ° \ 5/8-inch diameter
standards. crushed stone ground rod,8-foot
Length
Due to the moderate capacity requirements of this configuration, we expect that conduit routes
along collector roadways will be less expensive to construct than along arterial roadways, and
also have a relatively high lease revenue potential.
Table 5, Table 6, and Table 7 below detail a typical per Bill of Labor, Materials and Costs for
constructing one mile of the collector roadway conduit configuration via the following scenarios:
• Standalone construction using the directional drilling installation method
• Collaborative construction with other municipal projects where trenching can be utilized
without additional restoration costs
• Joint construction where the municipal conduit is just an incremental cost to the existing
utility project respectively.
Under the guidelines of this master plan, City conduit deployment should mainly be performed
using the two latter scenarios.
28 I
t 011dUh Utility Master flan I Sepiernber 2021
Table 5:Collector Roadway Conduit Configuration—Standalone Construction Costs
Unit Price
Description Estimated Extended
p
Quantity Price
UNDERGROUND CONDUIT&HANDHOLE INSTALLATION
Installation of ground rod EA 11 $35.00 $385.00
Installation of one City multi-duct using directional boring FT 5,280 $35.00 $184,800.00
Installation of handhole—Tier 22,24"06"06" EA 10 $850.00 $8,500.00
Installation of handhole—Tier 22,36"x48"x48" EA 1 $1,000.00 $1,000.00
CONDUIT MATERIALS
2-inch,SDR 11, HDPE roll duct FT 0 $1.20 -
7-Way Duraline multi-duct FT 5,280 $3.00 $15,840.00
HANDHOLES MATERIALS
Handhole—Tier 22,24"x36"x36" EA 10 $366.00 $3,660.00
Handhole—Tier 22,36"x48"x48" EA 1 $942.00 $942.00
CONSTRUCTION HARDWARE
Ground rod,8 ft. EA 11 $30.00 $330.00
#10 copper tracer/ground wire,green insulation FT 5,280 $0.36 $1,900.80
Markers,soil disk or dome post EA 11 1 $30.00 $330.00
TOTAL COST: $217,687.80
�� Af
v
1 �
291
Conduit Utility Master Plan I September 2021
Table 6:Collector Roadway Conduit Configuration—Municipal Collaboration Construction Costs
Estimated Extended
Description Unit Price
Quantity Price
UNDERGROUND CONDUIT&HANDHOLE INSTALLATION
Installation of ground rod EA 11 $35.00 $385.00
Installation of one City multi-duct in new trench FT 5,280 $8.00 $42,240.00
Installation of handhole—Tier 22,24"06"06" EA 10 $850.00 $8,500.00
Installation of handhole—Tier 22,36"x48"x48" EA 1 $1,000.00 $1,000.00
CONDUIT MATERIALS
2-inch,SDR 11, HDPE roll duct FT 0 $1.20 -
7-Way Duraline multi-duct FT 5,280 $3.00 $15,840.00
HANDHOLES MATERIALS
Handhole—Tier 22,24"x36"x36" EA 10 $366.00 $3,660.00
Handhole—Tier 22,36"x48"x48" EA 1 $942.00 $942.00
CONSTRUCTION HARDWARE
Ground rod,8 ft. EA 11 $30.00 $330.00
#10 copper tracer/ground wire,green insulation FT 5,280 $0.36 $1,900.80
Markers,soil disk or dome post EA 11 $30.00 $330.00
TOTAL COST: $75,127.80
30
Conduit Utility Master Plan I Septemher 202.1
Table 7:Collector Roadway Conduit Configuration—Incremental Joint Construction Costs
Estimated Extended
Description Unit Price
Quantity Price
UNDERGROUND CONDUIT&HANDHOLE INSTALLATION
Installation of ground rod EA 11 $35.00 $385.00
Installation of one City Multi-duct in existing trench FT 5,280 $2.00 $10,560.00
Installation of handhole—Tier 22,24"x36 x36" EA 10 $850.00 $8,500.00
Installation of handhole—Tier 22,36"x48"x48" EA 1 $1,000.00 $1,000.00
CONDUIT MATERIALS
2-inch,SDR 11, HDPE roll duct FT 0 $1.20 -
7-Way Duraline multi-duct FT 5,280 $3.00 $15,840.00
HANDHOLES MATERIALS
Handhole—Tier 22,24"x36"x36" EA 10 $366.00 $3,660.00
Handhole—Tier 22,36"x48"x48" EA 1 $942.00 $942.00
CONSTRUCTION HARDWARE
Ground rod,8 ft. EA 11 $30.00 $330.00
#10 copper tracer/ground wire,green insulation FT 5,280 $0.36 $1,900.80
Markers,soil disk or dome post EA 11 $30.00 $330.00
TOTAL COST: $43,447.80
f we look at the maximum potential lease revenue that could be generated on a per-mile basis
over the next five years for this configuration,the City could generate up to$41,000 a year by FY
26, using the City's documented lease rates. This is if we assume the maximum lease scenario is
where all seven channels of the multi-duct are leased.
Table 8:Financial Projections of Maximum Lease Scenario—Collector Roadways
FISCAL YEAR FY 22 FY 23 FY 24 FY 25 FY 26
Annual lease rate per mile for one
microduct of the City's multi-duct conduit $4,813.35 $5,054.12 $5,306.82 $5,572.09 $5,850.77
Maximum total multi-duct lessees 7 7 7 7 7
TOTAL PER-MILE LEASE REVENUE: $33,693.48 $35,378.85 $37,147.76 $39,004.63 $40,955.38
4.3.3 Local Roadway Conduit Configuration Methodology and Specifications
It is expected that, along local roadways, there would be minimal demand from lessees who
provide a service primarily directed at businesses.This is because most local roadways,especially
r in newer parts of Bozeman, tend to take more circuitous pathways and do not cross many
potential business customers.
31 I
Conduit Utility Master Plan I September 2021
If it is deemed necessary for the City to build conduit along a local road, we recommend the City
deploy a more cost-effective lower capacity configuration. This would be comprised of one 2"
HDPE conduit. We expect demand in areas like this to be minimal and limited to one or two
lessees at most. In this scenario the standard 2" provides a cost savings over the multi-duct while
still meeting the capacity needs of the expected usage.
Figure 10:Collector Roadway Configuration Detail
TelecommunicationsConduitNetwork—Local Roadway Configuration Detail
INSTALLATION AND CONSTRUCTION NOTES:
GRADE
1.Typical City communications conduit shall consist of
one(1)2-inch SDR 11 HDPE Conduit. o 0 0 °
0
°
2.Conduit shall be placed with a minimum of 42-inches 0 0 O 0 0 0
of cover below grade. °
°O o
O c• 0
3.Trenchless construction methods(i.e.directional ° o 0
'E• o
boring)shall be used unless prior written approval from 00 0 °0 v.
the City of Bozeman Public Works Department o °0 0 °O
• o
0 0 °
o o ° 0 0
0. o
0 00 0 0
O 0 o 2-INCH SDR 11 HDPE
0 CONDUIT
o O
o o
0 0 . o °
0 0 o O 0 0
• o
0 0 0
Despite the anticipated low demand for middle-mile leasing opportunities, local roadways have
a small potential to be leased by an internet service provider (ISP) to provide fiber-to-the-
premises (FTTP) service to the homes along local roadways. We recommend the City construct
these conduit routes to strike a balance between low-cost construction and accommodating
potential last-mile service. Thus, we recommend that for this conduit configuration, handholes
to be spaced no more than 300 feet apart to allow a potential ISP to provide shorter service drops
to prospective residents. In targeted neighborhoods where the chance of the conduit network
being used for FTTP services is high, we recommend placing handholes between every other
home along the route.
Given the anticipated capacity requirements and possible FTTP opportunities, as well as some
,sensitivity around placing handholes in people's yards, we recommend that the following
handhole types be used for this configuration:
Handholes with dimensions of 17"x30"x36" should be the minimum size placed along the route
to accommodate slack coils, potential splice enclosures, and FTTP service taps. The smaller size
also allows for minimal obtrusion as they will be most likely placed in residents'yards to minimize
complaints.
32
Conduit Utility Master Plan I September 2021
Figure 11:VN3O"36" Handhole Detail
Telecommunications Handhole Detail(17"x3O"x36")
INSTALLATION AND CONSTRUCTION NOTES: Too View
Typical Ground
1.An electrical ground rod shall be Installed In all vaults. ♦ Rod Placement
Ground rods shall be comprised of 13-mil copper-clad steel, O
5/8-inch diameter,minimum 8 foot length.Ground rod shall L#57
Crpical Condit
hed Stone
be tested to have an electrical resistance to ground of 25Placement
ohms or less. us
2.Vaults shall be of a composite,straight-walled
construction,UL-listed to ANSI 77-2010 and Tier 22load-
rated Quazite(#PG1730BA36)or approved equivalent.
Vaults shall have external dimension of approximately 17"x Min 12' Min 12^ Compacted select
30"x 36"(WxLxD)and shall have a bolt down cover. Side View backRll
3.In order to retain the associated load rating of the Vault,
conduit shall entervaults through the open bottom ofthe X<„x e
vault or openings created per manufacturer instructions. °'v""" 17"x 30"x 36"
Conduits shall protrude beyond the interior wall of the vault °XX Ground
by a minimum of 1-inch,and no more than 3-Inches. eO /,( 20 gauge Insulated rod damp
•oo � tracerwlrs
4.Vaults shall be installed flush with grade on a 6-inch bed of �h /
U57 crushed stone or gravel. CFO
<<< °
5.A minimum of 12-inches of select,compacted backfill u0- xy
must surround the vault on all sides. Backfill must not r 42-inch minimum
contain large rocks or chunks,and there should be no voids depth
Dura-line
between She vault sldeWdlls and the native SUrrOUrxfing 5011. Futurepalh ° 1 ° o ° °0 o� ^ ,e
a e o e° °
6.Any removal or replacement of concrete,asphalt,orsoi I 7 Way e ° e y b °° ° ° °
o 0
necessary for vault placement shall be performed In °o u o °0 o e
accordance with federal,state,and or local construction 6"bed of N57 e° 5/8-inch diameter
standards. crushed stone ground rod,8 foot
length,
We recommend increasing- the handhole size to 24"x36"06" at locations where the local
f.
roadway meets or intersects an arterial or collector roadway. The handholes can also be placed
where one or more local roadways intersect, pending final engineering designs accounting for
available space.
33 I
Conduit Utility Master Plan I September 202J
Figure 12:24"x36"36"Handhole Detail
Telecommunications Handhole Detail(24"xH"xH")
INSTALLATION AND CONSTRUCTION NOTES: Tap View
Typical Ground
1.An electrical ground rod shall be installed in all vaults. i Rod Placement
Ground rods shall be comprised of 13-mil copper-clad steel,
5/8-inch diameter,minimum 8 foot length. Ground rod shall
be tested to have an electrical resistance to ground of 25 TyCondit
ohms or less. Placement
Typical mentt
#57 Crushed Stone
2.Vaults shall be of a composite,straight-walled
construction,UL-listed to ANSI 77-2010 and Tier 22load-
rated Quazite(#PG2436BA36)or approved equivalent.
Vaults shall have external dimension of approximately 24"x Min 12" Min tz' Compacted select
36"x 36"(WXLXD)and shall have a bolt down cover. Side View backfill
3.In orderto retain the associated load rating of the Vault,
conduit shall entervaults through the open bottom of the
vault or openings created per manufacturer instructions.
Conduits shall protrude beyond the intedor wall of the vault eo Ground
by a minimum of 1-inch,and no more than 3-inches. zo gauge insulated rod damp
e°o tracerwlre
4.Vaults shall be installed flush with grade on a 6-inch bed of /
#57 crushed stone or gravel.
o°o
5.A minimum of 12-inches of select,compacted backfill ° �X '� °P
'$ az-min minimum
must surround the vault on all sides. Backfill must not i depth
large rocks or chunks,and there should be no voids oura-line
between the vault sidewalls and the native surrounding soil. ruturepath ° o ° 'o• o o ' .e
TwayB °E b °° ° o
o 'o ° o
6.Any removal or replacement of concrete,asphalt,or soil I ° ° ° o
necessary for vault placement shall be performed in uo o °0 o
'o
accordance with federal,state,and or local construction 6"bed of#57 5/8-inch diameter
standards. crushed stone ground rod,8 foot
length,
Due to the minimized capacity, we expect that conduit routes along local roadways will be the
least expensive to construct, but not significantly less than collector roadways. The main cost
.difference is the materials used because labor costs are pretty similar. We expect the smallest
lease revenue to come from conduit along local roads. It is our recommendation that
construction along local roadways be reserved for special cases that provide the network with
more than just lease opportunities.
Table 9, Table 10, and Table 11 below detail a typical per Bill of Labor, Materials and Costs for
constructing one mile of the local roadway conduit configuration via the following scenarios:
• Standalone construction using the directional drilling installation method
• Collaborative construction with other municipal projects where trenching can be utilized
without additional restoration costs
• Joint construction where the municipal conduit is just an incremental cost to the existing
utility project.
Under the guidelines of this master plan, City conduit deployment should mainly be performed
using the two latter scenarios.
I� 341
Conduit Utility Master Plan I Septernber 2021
Table 9: Local Roadway Conduit Configuration—Standalone Construction Costs
Estimated Extended
Description Unit Quantity Price price
UNDERGROUND CONDUIT&HANDHOLE INSTALLATION
Installation of ground rod EA 11 $35.00 $385.00
Installation of one City multi-duct using directional boring FT 5,280 $35.00 $184,800.00
Installation of handhole—Tier 22, 17"x30"x36" EA 10 $250.00 $2,500.00
Installation of handhole—Tier 22,24"06"06" EA 1 $850.00 $850.00
CONDUIT MATERIALS
2-inch,SDR 11, HDPE roll duct FT 5,280 $1.20 $6,336.00
7-Way Duraline multi-duct FT 0 $3.00 -
HANDHOLES MATERIALS
Handhole—Tier 22, 17"00"06" EA 10 $312.00 $3,120.00
Handhole—Tier 22,24"06"06" EA 1 $366.00 $366.00
CONSTRUCTION HARDWARE
Ground rod,8 ft. EA 11 $30.00 $330.00
#10 copper tracer/ground wire,green insulation FT 5,280 $0.36 $1,900.80
Markers,soil disk or dome post EA 11 $30.00 $330.00
TOTAL COST: $200,917.80
35
Concluit Utility Master Plan I September 2021
Table 10:Local Roadway Conduit Configuration—Municipal Collaboration Construction Costs
Estimated Extended
Description Unit Price
Quantity Price
UNDERGROUND CONDUIT&HANDHOLE INSTALLATION
Installation of ground rod EA 11 $35.00 $385.00
Installation of one 2-inch conduit in new trench FT 5,280 $8.00 $42,240.00
Installation of handhole—Tier 22,17"00"06" EA 10 $250.00 $2,500.00
Installation of handhole—Tier 22,24"06"06" EA 1 $850.00 $850.00
CONDUIT MATERIALS
2-inch,SDR 11, HDPE roll duct FT 5,280 $1.20 $6,336.00
7-Way Duraline multi-duct FT 0 $3.00
HANDHOLES MATERIALS
Handhole—Tier 22, 17"00"06" EA 10 $312.00 $3,120.00
Handhole—Tier 22,24"x36"06" EA 1 $366.00 $366.00
CONSTRUCTION HARDWARE
Ground rod,8 ft. EA 11 $30.00 $330.00
#10 copper tracer/ground wire,green insulation FT 5,280 $0.36 $1,900.80
Markers,soil disk or dome post EA 11 $30.00 $330.00
TOTAL COST: $58,357.80
36 ,
Conduit Utility Master Plan I September 2021
Table 11: Local Roadway Conduit Configuration—Incremental Joint Construction Costs
Estimated Extended
Description Unit Price
Quantity Price
UNDERGROUND CONDUIT&HANDHOLE INSTALLATION
Installation of ground rod EA 11 $35.00 $385.00
Installation of one 2-inch conduit in existing trench FT 5,280 $2.00 $10,560.00
Installation of handhole—Tier 22, 17"x30"x36" EA 10 $250.00 $2,500.00
Installation of Handhole—Tier 22, 24"06"x36" EA 1 $850.00 $850.00
CONDUIT MATERIALS
2-inch,SDR 11, HDPE roll duct FT 5,280 $1.20 $6,336.00
7-Way Duraline multi-duct FT 0 $3.00
HANDHOLES MATERIALS
Handhole—Tier 22, 17"00"06" EA 10 $312.00 $3,120.00
Handhole—Tier 22, 24"x36"06" EA 1 $366.00 $366.00
CONSTRUCTION HARDWARE
Ground rod,8 ft. EA 11 $30.00 $330.00
#10 copper tracer/ground wire,green insulation FT 5,280 $0.36 $1,900.80
Markers,Soil Disk or Dome Post EA 11 $30.00 $330.00
TOTAL COST: $26,677.80
If we look at the maximum potential lease revenue that could be generated on a per-mile basis
over the next five years for this configuration, the City could generate up to $9,000 a year by FY
26, using the City's documented lease rates. This is if we assume the maximum lease scenario is
where all two prove e r ase the single 2-inch conduit.
Table 12: Financial Projections of Maximum Lease Scenario—Local Roadways
FISCAL YEAR FY 22 FY 23 FY 24 FY 25 FY 26
Proposed annual lease rate per mile
for lateral access in the 2"conduit $3,610.02 $3,790.59 $3,980.12 $4,179.07 $4,388.08
Maximum anticipated lateral
conduit lessees 2 2 2 2 2
TOTAL PER-MILE LEASE REVENUE: $7,220.03 $7,581.18 $7,960.23 $8,358.13 $8,776.15
a) 371
Conduit Utility Master Plan I September 2021
4.3.4 City Property and Park Tra' s Conduit Configuration Methodology and
Specifications
We recommend the City place conduit long ii trails and property in instances where the new
conduit would interconnect existing network segments,thus adding to the overall network value.
For these deployments the City should use any of the configurations used for its roadways(aerial,
collector, and local) and should adopt the lowest common denominator between the two
segments it intends to connect as the guideline for selection (e.g., arterial-to-arterial should use
the arterial configuration, arterial-to-collector should use the collector configuration).
38 I
Conduit Utility Master Plan I September 2021
5 Leveraging Dig Once Opportunities to Deploy Conduit Infrastructure
at a Reduced Cost
Due to the modest funding available to the City and the relatively expensive construction costs
prevalent in Bozeman and its surrounding areas, the City's primary method of conduit
deployment should be incremental expansion through joint-construction opportunities, also
referred to as Dig Once. A Dig Once approach is never simply "throwing extra conduit or fiber
into a hole"—at a minimum, adding more conduit on a project requires designing the extra
facilities, acquiring more materials, additional labor, sizing manholes and handholes
appropriately, determining how all entities access and maintain the infrastructure, making sure
all clearances and spacing are correct, testing and documenting what is built. That said, a well-
implemented Dig Once opportunity can result in savings from 66 to 85 percent relative to new
construction.
5.1 Criteria for Dig Once Opportunities
Not all excavation projects are valid candidates for conduit deployment; non-ideal scenarios may
result in minimal cost savings, minimal usability,or even maintenance conflicts with other utilities
offsetting any potential savings. It is important that the City identify appropriate excavation
projects for Dig Once collaboration. We recommend the City adopt selection criteria to enable
quick and efficient identification of excavation opportunities for Dig Once construction.
The following criteria are consistent with good practices:
• The length of the project (i.e., ideally, select projects that will result in a long
continuous route offering a wide range of potential uses in the future).All other things
being equal, 1,000 feet or more provides significantly more value than projects that
are a block or less and is a suitable starting point as a cut-off—although very high-cost
routes (major street crossings, bridges) may provide value, despite being very short.
• Location of the project within the public right-of-way (ROW). Typically,
telecommunications conduit is placed between the edge of the ROW and the curb,
where it is more easily accessible by users and less affected by roadway construction.
Projects where excavation work occurs between the curb and the edge of the ROW
(or, in some cases, the City's 10-foot utility easement) should be favored.
• The opportunity to cost-effectively bypass physical constraints (e.g., bridges, railroad
tracks, freeway underpasses)
• The proximity of the project to current or planned City facilities and/or community
locations requiring service, such as health clinics, hospitals, or areas of economic
development
39 I
Concluit Utility Master Plan I September 2021
• The presence of existing City conduit infrastructure in the vicinity of the project (i.e.,
tying network segments together). In some cases new conduit might not be
considered along a given route if existing infrastructure runs parallel to the project.
• The interest of known partners or customers willing to lease conduit or fiber from the
city to defray the build costs
• The lack of alternative deployment options due to congestion in the right-of-way or
other factors
Opportunities that will not delay critical infrastructure (i.e., projects in which the
timeframe for Dig Once coordination will not create a public safety risk)
• Opportunities that would yield significantly lower-than-average costs
As opportunities emerge, or as existing opportunities are reviewed, we recommend they be
evaluated based on the above prioritization. We recommend the conduit utility program
manager score and rank each potential project on the above criteria.
5.2 Coordination With Municipal Excavation Projects
We recommend the City establish an internal process in which the conduit utility program
manager is notified of municipal excavation projects (road widening, streetlight placement, road
resurfacing, etc.) with ample time to assess the opportunity and, if applicable, implement the
l� addition of City conduit to the project. Defining this process should be one of the first activities
performed by the conduit utility program manager once the position is filled. 1
5.3 Coordination With Commercial Excavation Projects r�! �``
Coordinating with commercial excavators—potentially through quarterly outreach or filing
requirements—is an important best practice. This is best facilitated by creating a working group
of telecommunications providers, private utilities, and large builders in the City. The earlier
opportunities are known, the earlier they can be considered for Dig Once because the
coordination enables, but does not guarantee, more coordination among excavators, earlier
engineering, and lower costs. /
Figure 13 illustrates a recommended process for reviewing commercial projects for Dig Once
consideration. First, excavators submit a construction application by following the City's
ProjectDox application process, which includes providing information about the type of
construction and project scope in sufficient detail to determine whether the location and route
are desirable forjoint construction and enables the conduit utility program manager to estimate
the incremental cost of the conduit, per the method described in Section 5.5. ProjectDox will
need to be updated so that the conduit utility program manager is notified of the application at
the same time as the other City departments. We recommend the conduit utility program
manager have up to seven days to decline to participate or to confirm the City's intent to
participate in Dig Once collaboration. As the conduit utility program manager's review should be
40
Conduit Utility Master Plan I September 2021
rather minimal compared to other departments, we do not expect this will hold up the rest of
the application process.
If the City opts to participate, the excavator must submit Dig Once plans to the conduit utility
program manager, per the specification in Section 4, who reviews the plans for consistency with
the Dig Once requirements. If the plans are compliant, the project may proceed; otherwise, the
applicant must resubmit compliant plans. As a next step, the applicant will either accept the
standard incremental cost reimbursement or request an exception. If the applicant requests an
l exception, the City will either approve the new cost proposal or reject the exception and review
the request with the applicant. If the City and the applicant reach an agreement, the City will
issue an approval; if not,the City will decline to participate in the project. With the conduit utility
program manager's approval of the applicant's final Dig Once-compliant drawings the application
will be moved to the billing phase pending any outstanding approvals from other City
departments.
Figure 14 illustrates the process once the project is approved. After the excavator installs the
conduit, the conduit utility program manager coordinates with DPW to inspect the conduit for
compliance with the Dig Once requirements. If the conduit is compliant, the excavator submits
as-built information (for inclusion in City databases) and requests reimbursement per the cost
estimations in Section 5.5. If the conduit is not compliant, the excavator and conduit utility
program manager negotiate a remedy, which the excavator performs. DPW then re-inspects the
conduit; if the conduit is compliant, the excavator submits the as-built information and requests
reimbursement.
The excavator's as-built information must include scale plans of the completed project:
1. Vertical and horizontal position of conduit and vaults
2. GPS coordinates for manholes
3. Edge-of-curb offset measurement every 50 feet
4. Colors, diameters, and materials of conduit
411
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Conduit Utility Master Plan I September 2021
5.4 Dig Once Specifications and Sta rds
We recommend the City follow the same design standards for conduit deployment outlined in
Section 4, including the applicable conduit configurations, material specifications, and
construction standards. V9
There are two separate levels of joint construction in which the City could engage, each requiring
.a specific amount of coordination and ultimately resulting in different degrees of cost savings.
Combined with standard construction, the City has access to the following three levels of �'
collaboration when considering conduit deployment: L�
1. Standalone Conduit Construction: The City deploys its own conduit without any
collaborative efforts and would shoulder all of the construction costs. It is recommended
that the directional boring construction methodology be used to avoid the expensive
hard-surface restoration costs of street, sidewalk, and driveway crossings.
2. Joint Construction, Separated Trench: The City digs a separate trench for the placement 7
of conduit within the work limits of the shared project. Here the incremental cost of M/
adding conduit includes materials, trenching, and backfill, but does not include repaving
or restoring surfaces, as that is assumed to be part of the original project.
3. Joint Construction, Shared Trench: The City and another utility place their conduit in an
already-opened trench. Here, the incremental cost of adding conduit includes materials
and the placement of conduit in the open trench. It does not include trenching, backfill
and restorations as it is assumed to be part of the original project.
Section 5.5 identifies the cost difference of each approach and provides a guidance for estimating
the incremental cost of adding conduit to existing projects.
The sections below identify possible joint construction scenarios as well as provide design
guidelines for specific scenarios.
5.4.1 Conduit Installation Not Coordinated with Another Trench
In cases where a Dig Once opportunity emerges because of road widening,sidewalk replacement,
or it is simply infeasible to place City communications conduit in the same trench (i.e. City water
or stormwater mains), a separate trench can be dug. In this case, the trench would still be placed
within the bounds of the original project to take advantage of the restoration work already being
performed.
Figure 15 below depicts the typical layout and trench details for conduit installation that is not
coordinated with another trench. In this scenario, the trench is excavated alongside the
-placement of a new water main, maintaining the required 10-foot clearance.The conduit should
be placed outside of vehicular travel lanes, and in proximity to the potential conduit users for
increased ease of maintenance and access. Placement under the sidewalk can be done cost-
44 I
Conduit Utility Master Plan I September 2021
effectively if the sidewalk is being replaced or resurfaced as part of the excavation. The conduit
should sweep from the alignment to the vaults with no more than 45-degree bends and a 52-
inch minimum radius.
For these typical specifications, the arterial roadway conduit configuration is shown.
45 I
Conduit Utility Master Plan I �eptcmber 20?1
Figure 15: Separate Trench Parallel to City Storm Sewer Main
Horizontal Conduit and Vault Layout
INSTALLATION AND CONSTRUCTION NOTES:
L City communications conduit shall consist ofone(1)Dora-
Line Futurepath 7 my 22/16 conduit and one 11)2-Inch SDR
I 11 HOPE Conduit
I
Composite,Tier22 2.Allconduit couplers and fittings shall be installed to be
vault,36'x48'x48• water-tight.Conduits shall be sealed with an endcap or
blank duct pug upon installation.
I 3.An electrical ground rod shall be Instated In all vaults.
Ground rods shall be comprised of 13-mil copper-dad steel,
i 5/8-Inch diameter,8-foot length.
I
I
5.Vaults shal be of a composite,straight-walled
construction,UL-listed to ANSI 77-2010 and Tier 22load-
rated quaxlte(8PG36488A48)or approved equivalent.
Vaults shall have external dimension ofapproximately36"x
1
48'x 48'(WxtxD)and shall have a bolt down cover.
6.Vaults shall be placed within green splice as close to the
edge where possible.
I
I 7.Conduit shall be placed with a minimum of 42-Inches of
i coverbelowgrade.
I
I
I -500 feet &Conduit shall be placed with sweeping bends from the
i roadway to each handhole locatlon.If using rigid conduit,
I bends shall utilize 45-degree elbows with a52-inch minimum
w I bend radius.
New
•Water/Sewer e I 9.Conduit shall enter vaults from the through openings
Main created per manufacturer instructions to retain the
ouxa-twxrumxrepaxx I associated load rating.Conduits shall protrude beyond the
w/mce"ourr\ I interior wall ofthe vault by a minimum of 1-inch,and no
more than 3-Inches.
I 10.Trenrh backfill in the pipe area shall be Rowable fill or
I W-0 crushed rock.
I
I 11.Trench backfill within a minimum of&inches of the
i concrete base,or a minimum of 18-Inches below grade for
E unpaved applications,shall be Class 2 Aggregate Base and
"SDa 11
. j compacted to 95-percent maximum dry density
per ASTM
� H0fE r—.1 I 1557 or A0.5HT0 T-180.
d i
12.City communications conduit shall maintain 12-Inches of
clearance radially from other utilities,unless otherwise
•Paved Travel lanes agreed upon by the City and the applicable utility owner.
I
City ROW Green
space
Joint Trench Details
Integral Curb&Gutter
Fin shed roadway GRADE
so fam
BADE
° 0 0 °°O eO°0
°o o
0• 0
x _ 0 0 0 ° °o o �e o• o
Cortmete base ao.p o 0. ° 0 0 o0 00 °o
0 0
0 o °
0 b o 00 u .0 0 'DURA-LINE FUTUREPATH 7 WAY 22/16
E ° p' CONDUIT WITH 2O GAGE TRACE WIRE.
. o ° o° °oo u o 0000 0 0 00° •° ,°o° ICI
0 0 00 0 ° o
° 2-INCH SDR 11 HDPE
o tO bot Minimum o o CONDUIT
0
°•0• %°O° p ° ° 00. ° li
New 0Q o o�. ° °° e 0 o
Water/Sewer 0
0 O ° °ry 0 U °0- e 00
0 °
Main ,0 ° rp. °oo as° o° o o o
°c ° ° o °o° °° ° ° u °o.o
°0 0 0 0' o' °° ° I
u °o o c 8, o ° 0 0 0 e0 0. o
° °aaoQo
°;° ° °
u° 0• Dig-Onceloint R
o °
Comtmctio t-Water/
o u°
Sewer Bozeman,Montana
III FSC°no
Ilot to srak
461 �i
Conduit Utility Master Plan I September 2021
5.4.2 Conduit Installation Coordinated with Another Trench
In cases where a Dig Once opportunity emerges because of trenching for other similar utilities, a
shared trench may be viable. Applicable City excavations include street lighting Y pp Y g g projects, and
applicable non-City excavations include placement of private communications utilities, especially
under circumstances when multiple providers must relocate their utilities to a joint trench to
accommodate roadwork such as widening.
Ideally, in this specification, the Dig Once conduit is oriented vertically to—or, at the very least,
directly beside—the other excavator utilities. This reduces or eliminates the need for additional
renching and would incur the lowest incremental cost. Again, the conduit should sweep from
the alignment to the vaults with no more than 45-degree bends and a 52-inch minimum radius.
Figure 16 below depicts the layout and trench details for conduit installation that can be
coordinated with another trench. This specific example shows a sample joint construction with
City streetlight conduit.
Figure 17 below depicts another example of conduit installation that can be coordinated with
another trench. This specific example shows a sample joint construction alongside private
telecommunications conduit.
For these typical specifications, the arterial roadway conduit configuration is shown.
47 I
Conduit Utility Master Plan I September 2021
Figure 16:Shared Trench With City Streetlight Conduit
Horizontal Conduit and Vault Layout
INSTALLATION AND CONSTRUCTION NOTES
L City communications conduit shag consist of one(3)owe-
Une Pulurepath 7 way 22/16 conduit and one 2-Inch SDR
I 11 HOPE Conduit
I
Streetlight ease Composite,riier22 2.Allconduh couplers and fittings shall be installed to be
vault,36"x48"x48• water-tight.Conduits shall be sealed with an endap or
blank dud plug upon Installation.
1
. I I 3.An electrical ground rod shall be installed In all vaults.
Ground rods shall be comprised of 13-mil copper-dad steel,
5/8-Inch diameter,8-foot length.
•Composite,Tier 22 - j
'vault,l5'x25"x1Y I 5.Vauhs shag be o(acomposite,straight-walled
_ _ _ I construction,UL-listed to ANSI 77-2010 and Tier 22 load- I
I rated Quarlte(UPG3648eA48)or approved equivalent f
I Vaults shall have external dimension ofapproximately 36"x
I
48'x 48"(WxLxD)and shall have a bolt down cover.
' 6.Vaults shall be placed within green splice as close to the
1 edge where possible.
I
I 7.Conduit shall be placed with a minimum of 42-inches of
1
cover below grade.
I
I -500feet &Conduit shall be placed with sweeping bends from the
roadway to each handhole loafion.If using rigid conduit,
I bends shall utilize 45-degree dhows with a 52-inch minimum
fp I bendradius.
I
3 I 9.Conduit shall enter vaults from the through openings
created per manufacturer Instructions to retain the
I
associated load rating.Conduits shall protrude beyond the
1 Interiorwall of the vault by minimum of 1-inch,and no
more than 3-inches.
I
I 10.Trench badsfill in the pipe area shall be Roxable fill or
• Two 2-Inch - Y'-O crushed rock.
Streetlight
Conduit I 11.Trench bachfill within a minimum of 6-inches of the
5 I concrete base,or a minimum of l8-indtes below grade for
S unpaved applications,shall be Class 2 Aggregate Base and
h \ I compacted to 95-percent maximum dry density per ASTM D-
W MAM 11111ATH 1 11,111 AASHTO T-180.
• • • • • • • ' \ WAY22/16 COHDUn
12.City cammuniatiom conduit shall maintain 12-Inches of
dearance radially from other utilities,unless otherwise
z soa st Paved Travel lanes xovs conu•u agreed upon by the City and the applicable utility owner.
'
City Row Green
space
Joint Trench Details
GRADE
0 2 o O O o
o E
0 0 0 0 0 o
o0 o
0 0 Q O
E o0 0 00 o• ^
00
• t 7W0 2-INCH ELECTRICAL
o O o CONDUIT
o O
0 0
O o0o 0 0
o.
0 o
0 O 0
o ' (2-INCH SDR 11 HOPE
o CONDUIT
0 0
0 °O
0
o DURA-LINE FUTUREPATH T WAY 22A6
o 0 Q CONDUIT WITH 20 GAGE TRACE WIRE,
Joint Trench with City
Street Light Electrical
Conduit Bozeman,Montana
48 I
Conduit Utility Master Plan I Septenb,,r ?nZ?
Figure 17: Shared Trench With Private Telecommunications Conduit
Horizontal Conduit and Vault Layout
INSTALLATION AND CONSTRUCTION NOTES,
L City communications conduit shall consist of me(1)Dura-
jUne Fulurepath 7 way 22/16 condull and one 2-Inch SDR
I 11 HOPE Conduit.
I
Composite,Tler22 2.All condul couplers and fittings shallbe lmtaledtobe
vault,36"x48•x48' water-tght.Conduits shall be sealed Wth an endwp or
blank duct plug upon installation.
I 3.An electrical grand rod shall be installed In all vaults.
Ground rods shall be comprised of 13-mil copper-dad steel,
j 5/8-Inch diameter,&fool length.
I
5.Vauls sha8 be of a composite,straight-walled
Private Telecommunications 1
Conduit I constrllctlon,UL-listed to ANSI 77-2030aM Tier 221oad-
I rated Onazlle(8PG3648BA48)or approved equivalent.
Vaults shall have extemaldimenslon ofapproxlmately36•x
48"x 48"(WxLxD)and shall have a bolt down cover.
6.Vaults shall be placed within green splice as dose to the
- I edge where possible.
I
7.Conduit shall be placed with a minimum of 42-Inches of
jcover below grade.
I
I -500 feet 8•Conduit shall be placed with sweeping bends from the
roadway to each handhole location.If using rigid conduit,
bea sshaIf utilize 45-degree elbows with a 52-Inch minimum
Rp bendradlus.
5
3 s
9.Conduit shall enter vaults from the through openings
created per manufacturer Instructions to retain the
associatedload rain Conduits shall rotrudeb and the
I g• P beyond
Interior wall of the vault by a minimum of 1-Inch,and no
more than 3-Inches.
Green
space 10.Trench backfill In the pipe area shall be fiowable fill or
I
%"-0 crushed rock.
I 11.7rench backfill within a minimum of 6-Indies of the
concrete base,or minimum of 1&Inches bdowgrade for
• E. - unpaved appliodons,shall be Class 2 Aggregate Base and
I compacted to 95-percent maximum dry density per ASTMD-
1557 or AASHTO T-180.
.9 5 \UM-LINE fUNRFMTH)
' wew z:/Sscoxourt 12.Clry communlcatiom conduit shall maintain 12-Indies of
• rs.ll dearance radially from other utilities,unless otherwise
Paved Travel agreed upon by the City and the applicable utility owner.
Lanes xorE cn�aun
city ROW City Utility
Easement
Joint Trench Details
GRADE
O O o
O o
°0
E, Private Telm unim8ore
00 O o Conduit
o. O
0
° O 0
o O
O o 0
o o.
0
O G O 2-INCH SDR 11 HOPE
CONDUIT
0 0
0 o O DURA-LINE FUTUREPATH 7 WAY 22/16
° 0 O O CONDUIT WITH 2O GAGE TRACE WIRE.
Joint7rench with Private
Telecommunications
Conduit Bozeman,Montana
49 I
Conduit Utility Master Plan I September 702,'
While the most pronounced savings from Dig Once occur when the primary excavator is opening
a trench or building a new road or sidewalk, reduced costs are also possible in a project where
the excavator is using directional boring. Generally speaking, directional boring in a range from
two to six inches in diameter can provide savings through adding conduit. In other words, if the
primary project calls for two 2-inch conduits, adding two more conduits will cost less than if they
were added by a new standalone project. The City standards, which would, at most, call for the
addition of two conduits, should be applicable in nearly all Dig Once scenarios. On a case-by-case
basis, however, the City can choose to alter its standards to better work with the excavator, r
utilizing a deployment approach suited to its specific project.
5.5 Estimating the Incremental Cost of Adding Conduit to Existing Projects
The incremental cost is the combined price of additional materials (conduit,vaults, location tape
and ground rods) and labor (incremental engineering, incremental design, placement and
assembly of incremental conduit, placement of incremental vaults, inspection, and
documentation). We propose a mechanism for estimating the cost of the proposed Dig Once
infrastructure based on labor pricing provided by local contractors and materials costs from our
experience with similar projects.
The cost in this model does not include surface restoration or paving (which we assume to be
part of the original project) beyond that which is specifically required for the placement of vaults
for City communications conduit outside of the original project boundaries.
With joint construction of trenches, the incremental cost does not include trenching or
backfilling. Where the Dig Once trench is separate from the original trench, however, the
incremental cost includes trenching and backfill, but does not include repaving or restoring the
road surface (again, these costs are assumed to be part of the original project).
Unit Labor cost estimates are based on direct unit pricing provided to the City by a local
construction firm. Material cost estimates are based on pricing found in similar projects
throughout the nation. As the City gains experience by participating in projects, it will develop a
more accurate sense of cost.
Table 13, Table 14, and Table 15 below provide estimates for the incremental cost of conduit
construction, in a dedicated trench, along arterial, collector, and local roadways, respectively.
We emphasize that, in order to make Dig Once cost-effective and achieve the pricing discussed
below, the excavator must leverage economies of scale in engineering, planning, contracting,
project management, and permitting.
The estimated cost-per-foot of this incremental deployment approach ranges from $12.03 to
$17.98, depending on roadway type. This represents a significant decrease in cost-per-foot from
50 r
Conduit Utility Master Phii I 7 ir:•rriber 2021
standalone conduit construction, which is estimated between $41.03 and $55.98 after
engineering costs are taken into consideration.
51 I
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Conduit Utility Master Plan I .September 2021
5.6 Exemptions and Alternative Methodologies
It is possible that a Dig Once opportunity may deviate from this model, such as projects in
corridors where space for additional conduit is limited, or in highly congested areas where it is
difficult to avoid utilities and other obstructions. In these instances, the conduit utility program
manager will need to use their discretion to identify an optimal Dig Once solution for the City.
This may include placing non-standard duct or even declining participation in the joint
construction if the situation warrants it.
It is also possible that an excavator may propose another approach to providing the incremental
conduit that provides the same capacity and functionality. In these situations, there needs to be
a process for the excavator to make its case, and for the City to consider the alternative.
In all cases where the excavator claims a deviation from the pricing model or specifications, the
conduit utility program manager must approve the exception and evaluate the alternative
pricing. To support the claim, the excavator's project engineer should be required to provide to
the conduit utility program manager its detailed design and the itemized bid pricing for the
alternative approach, and indicate in writing how the project owner has made its determination
and what steps were taken to determine the pricing (including all bids obtained for the work).
Bid pricing should be provided at the level of detail of Table 1 and Table 2 above.
The conduit utility program manager should only consider a deviation and a different
reimbursement amount if it is determined that the excavator faces extraordinary challenges in
complying, such as extremely high congestion of existing utilities or obstructions or
environmental hazards. It should not be sufficient for the excavator to show that its construction
bids or other costs are high relative to the City estimate.
The conduit utility program manager should evaluate alternate approaches based on its technical
merits. The alternate approach needs to provide capacity and be functionally equivalent or
superior to the approach outlined in Section 4.
58 r
Conduit Utility Master Plan I September 2W,r
Appendix A: City of Bozeman Conduit Asset Mapping
CTC worked in collaboration with Bozeman's GIS staff to obtain access to the City's large database
of geospatial information. The data requested by CTC was targeted specifically to facilitate the
analysis of the City's available conduit assets, creating a strategy for conduit expansion, and
determining the feasibility and cost of future deployments.
The following is a list of high priority data that CTC requested from the city of Bozeman's GIS
team.
• Conduit and fiber data
• Aerial imagery
• Street centerlines
• Parcels
• Address points
• Building polygons
• Impermeable surfaces
• Political boundaries
• Trails
• Utility easements
In addition to the GIS data provided,CTC reviewed the City's construction as-built documentation
and current lease agreement contracts. From this collection of data, we were able to map the
City's existing 4.9 miles of conduit (Figure 18) comprised of the following segments:
• North 7th Avenue segment: 12,138 linear feet of conduit route, comprised of one 7-way
conduit.
• Downtown segment: 3,655.6 linear feet of conduit route, comprised of one 7-way
conduit.
• Montana Avenue segment: 10,073.5 linear feet of conduit route, comprised of three
1.25-inch diameter conduits.
59 I
Conduit Wilily Master Plan I September 2021
Figure 18:City of Bozeman Conduit Network Map
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City Owned Conduit City Limits
nasemep:ESftl Vbrid Topogre b Map
C_,djnate System:N k 1983 Uyh1 Zone 12N Created by.CTC TxMotepy s E—gy,202f0922 Dab Soercaa:Cfont.Irdamai
601
Concluit Utility Master Plan I September 2021
Appendix B: Private Conduit Asset Mapping and Analysis
In addition to mapping City-owned conduit infrastructure, CTC used the City's data to identify
of er conduit systems that may affect decisions related to future municipal conduit deployment.
pecifically, we mapped the conduit infrastructure owned by Bozeman Fiber, one of the City's
primary lessees. Bozeman Fiber is a community-owned nonprofit organization who deploys fiber
infrastructure to support local businesses, attract new businesses, and help ensure economic
growth in the community. Bozeman Fiber currently owns and maintains approximately 18.3 miles
of conduit, which can be seen in Figure 19.
As the conduit utility's primary function is to generate lease revenues for the City, understanding
where to deploy conduit to maximize leasing opportunities is crucial to success.A potential lessee
is more likely to use the City's conduit network if it provides diverse routing from its own network.
Having a solid grasp of potential lessees' needs will help the conduit utility program manager
better evaluate the cost/benefit of any given expansion opportunity.
Figure 19:City and Private Conduit Map
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Bozeman Fibm Conduit(Pmulety Owned)-City Owned Conduit City Limits
Baaamap:ESRI%%bdd Topographic Map C—W by CTC T h-IM A E—gy.20210922 Data Saur ,CSant 1.1-1
C_n Aia SY-M NAD 1203 UTM 7—12N
611
Conduit Utility Master Plan I September 2021
Appendix C: City Roadway Designations
Section 4 of this master plan describes a standard process for deploying conduit throughout the
C'ty using different material configurations, each with varying levels of leasable capacity. These
onfigurations are tied to City defined roadway types (arterial, collector, and local). Figure 20
provides a map of each roadway designation. We have identified that the City has 59.4 miles of
arterial roads, 43.2 miles of collector roads, and 192.3 miles of local roads.
Figure 20:City Roadway Designations
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Basemap:ESRI Nbdd Topographic hlep
Coordinate System:NAD 1983 UTh1 Zone 12N Created by:CTC Technology&Energy,20210922 Data Sources:Client,Inlemal
62