HomeMy WebLinkAbout18 - Design Report - Sundance Subdivision Phs A & C - Water, Sewer, Paving, Storm Drainage
JOB NO. B13-016
GREAT FALLS, BOZEMAN, KALISPELL & SHELBY, MT | SPOKANE, WA | LEWISTON, ID | WATFORD CITY, ND | MEDIA, PA
JUNE 2018
406.586.0277
tdhengineering.com
234 East Babcock Street
Suite 3
Bozeman, MT 59715
CLIENT ENGINEER
Baxter Meadows Land Partners TD&H Engineering
234 East Babcock Street, Suite 3
Bozeman, MT 59715
Engineer: Ahren Hastings , PE
WATER, SE WER, PAVING AND STOR M DRAINAGE
IMPROVEMENTS
SUNDANCE SUBDIVISION P HASES A & C
INFRASTRUCTRE IMPROV EMENTS
BOZEMAN, MONTANA
DESIGN REPORT
7-24-18
Ammeded 5.11.2020
to include Equestrian
Lane extension to
Davis Lane
2
Purpose and Introduction
The purpose of this report is to explain how water, sanitary sewer, and storm sewer
facilities will be designed to meet City of Bozeman Design Standards and provide service
to the Sundance Subdivision. The report will provide information on the design of the
above mentioned infrastructure. The boundary of the Sundance Subdivision can be seen
on the DRAFT final plat shown in Figure 1.
During the preliminary plat approval process the design for the infrastructure
improvements to serve these lots has already been submitted and approved with the City
of Bozeman, attached here. The overall design intent has remained the same since
preliminary plat approval with minor changes to the planned development. These
changes have not altered the overall design for utility sizing or road construction.
Lot 2 is still planned to be developed in to residential units with the addition of
commercial space along the eastern boundary, Figure 2. This design has been approved
by the City of Bozeman through the Master Site Plan submittal process. The number of
units has decreased from the original subdivision preliminary plat approval being
swapped for commercial space. The original subdivision design for infrastructure
improvements will exceed the requirements of the new proposed Lot 2 design.
Lots 3 and 4 are still planned to be developed in accordance with the original preliminary
plat design. However, a portion of the area originally located in lot 3 will now be
dedicated park space to meet site plan requirements for lot 2. The residential/commercial
area to be developed will therefore be reduced and original subdivision design for
infrastructure improvements will exceed the requirements of the new proposed Lots 3 and
4 design.
Lot 1 is not included in this phase of final plat design and is unchanged from original
preliminary plat design. It will be a remainder lot at this time.
Design Report
Detailed design considerations and requirements are shown in the attached original
design report. The following summarizes those designs applicable to the infrastructure
design for Phases A and C.
Water
All new water mains will be 8-inch diameter, class 51, ductile iron pipe. Hydrant leads
will be 6-inch ductile iron pipe. Due to the nature of the subdivision and the anticipated
use of the large lots, 8-inch diameter stubs will be or have previously been extended to
the proposed lots. This is being done to allow for construction of future water mains and
looping of water mains specific to the site plans that will be developed for these lots.
Sewer
Equestrian Ln extension shown in Figure 1a.
3
Each lot in the subdivision has or will have at least an 8-inch sewer stubbed out to the lot.
All new sewer mains will be 8-inch diameter SDR 35 PVC. The sewer mains have been
sized for the development based upon the following values from the City of Bozeman
Design Standards and Specification Policy, Revised 3/31/2011:
Residential
2.11 people / unit
188 Units
89 gallons / capita / day
150 gallons / acre / day infiltration
2000 gallons per acre per day average (commercial)
25 gallons per acre per day average (park)
New sewer mains will be designed to roughly parallel the road centerline grades. A
capacity check on 8-inch sewer main using the minimum slope of 0.4% and a Manning’s
friction factor of 0.013 indicates new wastewater flows from the subdivision will not
exceed the pipe’s capacity assuming 75% of the maximum capacity.
8-inch sewer mains will be able to adequately handle the flows as described above.
However, since this subdivision falls within the Baxter Meadows Lift Station zone
adequate capacity must be present in the lift station to support these flows. From the
original Baxter Lift Station design report, for B2 zoning, 3,495 gpd/ac was used. This
project falls entirely within B-2 zoning and the size of Lots 2, 3, 4, Sundance Park and R2
make up a total of 23.9 acres.
Allocated capacity within the lift station is calculated as follows:
3,495 gpd/ac x 23.9 ac = 83,531 gpd / 1440 min/day = 58.0 gpm
150 gpd/ac x 23.9 ac = 3,585 gpd / 1440 min/day = 2.5 gpm
Peaking factor from original lift station design report = 3.01
(58.0x3.01)+2.5 = 177.1 gpm (allocated flow in lift station)
Estimated flow for this subdivision is calculated as follows:
Lots 3, 4 and R2 are commercial and total 11.89 acres
2,000 gpd/ac x 11.89 ac = 23,780 gpd / 1440 min/day = 16.5 gpm
Sundance Park total 2.83 acres
25 gpd/ac x 2.83 ac = 70.75gpd / 1440 min/day = 0.05 gpm
150 gpd/ac x 14.72 ac = 2,208 gpd / 1440 min/day = 1.5 gpm
Peaking factor from original subdivision design report = 4.1
(16.5 x4.1)+2.5 = 70.2 gpm
Lots 2 is 188 residential units and 0.67 acres (29,397 SF) of commercial
2,000 gpd/ac x 0.67 ac = 1,340 gpd / 1440 min/day = 0.9 gpm
188 x 2.11 x 89 = 35,305 gpd / 1440 min/day = 24.5 gpm
4
150 gpd/ac x 9.132 ac = 1,370 gpd / 1440 min/day = 1.0 gpm
Peaking factor from original subdivision design report = 4.1
(25.4x4.1)+1.0 = 105.1 gpm
Total Estimated Peak Flow = 105.1+ 70.2 = 175.3 gpm < 177.1 gpm
Pavement Design and Construction
Three new road sections will be constructed to accommodate the Sundance Subdivision:
1. Caspian Avenue from Baxter Lane to Equestrian Lane
2. Equestrian lane from Caballo Avenue to east of Caspian Avenue
3. Galloway Street from Caspian Avenue to Equestrian Lane
The proposed roads line up with existing roads in the Baxter Meadows Development.
The alignment of these roads is in conformance with anticipated roads that were master
planned in the expired Baxter Meadows PUD. A City of Bozeman standard 60-foot
right-of-way and 35-foot wide (top back of curb to top back of curb) road section is
proposed.
Stormwater Treatment
Solids, silt, oils, grease and other pollutants will be removed from the stormwater prior to
discharge from the site as required by the City of Bozeman Design Standards.
Catch basins with 9-inch sumps and detention ponds will collect and allow for heavier
solids to settle out before storm water is discharged into the Spring Ditch. The grass
lined detention ponds will also remove much of the grease, oils and silt from the
stormwater. Based on technical research, grass lined swales/ponds trap urban runoff
contaminants and provide a high level of treatment. Grease and oils coming in contact
with the grass will stick to the grass and biodegrade naturally.
During the detention pond design, it will be necessary to capture the first half inch of
runoff, and keep it on site. This may be accomplished with a dry well or series of
drywells that would reintroduce that initial runoff to the soil.
Stormwater Conveyance and Detention Ponds
In the pre-developed condition, storm water that does not infiltrate into the ground flows
to the north into the existing wetland on the north side of Kimberwicke Street and is
ultimately conveyed off the property through the Spring Ditch which flows in a northerly
direction through the region. The Spring Ditch is considered a stream/ditch according to
the Gallatin County Conservation District.
Davis Ln
5
Because of the nature of this development and the large lot sizes, several possibilities
exist for further development of these lots. As a result, installation of storm drainage
infrastructure on the lots is not possible at this time. Future site plans and further
subdivision of the lots must account for their own storm water. Storm water on each lot
that is not already accounted for in previously installed infrastructure must be detained
onsite and released at the predevelopment rate. Storm water detention and conveyance
will be reviewed by the City of Bozeman for each lot individually though the site plan or
additional subdivision process.
Due to the nature of the subdivision and the anticipated use of the large lots, 18-inch
diameter stubs will be or have previously been extended to the proposed lots. This is
being done to allow for construction of future storm water mains specific to the site plans
that will be developed for these lots.
During site plan design and review for Lot 2 a new stormdrain detention pond is
proposed north of Kimberwicke to account for stormwater runoff in Lot 2. The size of
this pond is determined by available area though an easement agreement. As Lot 2 is
developed it will utilize capacity of this pond which will be determined during the site
plan submittal process. Should further capacity be required it will utilize other areas or
methods, i.e. underground infiltration.
Ground Water
This area of Bozeman is known for high ground water. A geotechical evaluation on the
lot to the west encountered shallow ground water. Depths to ground water may vary.
Road profiles throughout the development should be set above existing ground. Due to
the elevated ground water levels, careful consideration of ground water and assistance
from design professionals should be considered prior to installation of structures with
basements or crawlspaces.
All infrastructure improvements (water, sewer, and storm drain) have been desinged
and sized to serve all surrounding lots. The Equestrian Lane extension does not change
the intened use of the surrounding lots. The extension is proposed in order to better
serve the full perimeter of the adjacent lots to Equestrian Lane and provide better
access to underground utilities when the lots are developed. No changes to the
calculations and design already approved have been made as part of this extension.
N89°44'02"E 765.80'N00°16'28"W 666.60'N89°43'32"E 406.00'S00°16'16"W 1045.71'S89°43'38"W 615.34'S00°15'44"E 599.91'S89°43'23"W 385.05'N00°16'34"W 1039.07'S89°43'38"W 161.30'S00°16'22"E60.00'SURVEYED BY:QUALITY CHECK:JOB NO.FIELDBOOKDRAWN BY:DATE:Engineeringtdhengineering.comMONTANAWASHINGTONIDAHOGREAT FALLS-BOZEMAN-KALISPELL-SHELBYLEWISTONSPOKANENORTH DAKOTAWATFORD CITYB13-016FIGURE 1
FIGURE 1A
FREFREFREFREBRABRA
BUILDING C-1COMMERCIAL1-STORY7,170 SF6 STALLS 7 STALLS
9 STALLS8 STALLS
6 STALLS
9 STALLS9 STALLSPARKING REQUIREDCOMMERCIAL SPACEGROSS AREA29,397 SFNET AREA (80%) 23,517 SFOFFICE:1 STALL / 250 SF94 STALLS REQ'D70% OF COMMERCIAL PARKING PROVIDED WITH A JOINT PARKINGAGREEMENT94 (70%) = 65 JOINT STALLS94 (30%) = 29 DEDICATED COMMERCIAL STALLS REQ'DHOUSING188 UNITS1.5 STALLS/UNIT 52 1-BR 28% 78 STALLS (1.5/UNIT)2 STALLS/UNIT 112 2-BR 60% 224 STALLS (2/UNIT)3 STALLS/UNIT 24 3-BR 12% 72 STALLS (3/UNIT)HOUSING PARKING374 HOUSING STALLS REQ'DTOTAL PARKING REQ'D403 STALLS(INCL. 10 ADA STALLS)PARKING PROVIDED GARAGE STALLS (24' DEEP) 112 (60% OF UNITS) TANDEM STALLS (18' DEEP) 103 SURFACE STALLS283 PARALLEL STALLS 38 (KIMBERWICKE & GALLOWAY ST.) EXISTING ANGLED STALLS 38 (CASPIAN LANE)TOTAL PARKING PROVIDED 574 STALLS(INCL. 12 ADA STALLS)DEDICATED COMMERCIAL 29 STALLSALLOWABLE HOUSING 545 STALLSBUILDING C-2COMMERCIAL2-STORY7,528 SF / LEVEL15,057 SF TOTALBUILDING C-3COMMERCIAL1-STORY7,170 SF24' FIRE LANE24' FIRE LANE24' FIRE LANE24' FIRE LANEPROPOSED SITE LAYOUTPARK MEADOWS APARTMENTSNORTH030' 60'120'15'SCALE: 1"=30'7 STALLS7 STALLS10 STALLS8 STALLS
14 EXISTING STALLS9 STALLS24 EXISTING STALLS 9 STALLS7 STALLS7 STALLSCLUBHOUSE AT MAIN LEVEL4,266 SF7 STALLS11 PARALLEL STALLS (9' x 24')9 STALLS11 STALLS10 STALLS8 STALLSMAILBOXESPAVILION25'SETBACK7'SETBACK7'SETBACK 7'SETBACK8 STALLS9 STALLS9 STALLS9 STALLS10 STALLS9 STALLS7 STALLS7 STALLS6 STALLS
25'SETBACKDAVIS LANEGALLOWAY STREETCASPIAN LANE
KIMBERWICKE ST.6 PARALLEL STALLS (9' x 24')SNOW STORAGESNOW STORAGE SNOW STORAGE 21 PARALLEL STALLS (9' x 24')30' PUBLICEASEMENT30' PUBLIC
EASEMENT 5' SETBACK5' SETBACK5' SETBACK 5' SETBACK 10 STALLS9 STALLS8 STALLS
2 ST.
6 STALLS
12 TANDEM STALLS12 TANDEM STALLS12 TANDEM STALLS3 STALLS6 TANDEM STALLS12 TANDEM STALLS12 TANDEM STALLS18'18'
18'24'4.86'
2.69'
7.2'3.5'2.81'
2.81'3.5'
24'24'
24'
24'
18'NO PARKINGNO PARKING24'11 TANDEM STALLS18'2.59'14 TANDEM STALLS12 TANDEM STALLS18'24'1 STALL 1 STALL
5 STALLS24' FIRE LANE
24' FIRE LANE 1 STALLBUILDING TYPE 1BUILDING TYPE 1BUILDING TYPE 2BUILDING TYPE 2BUILDING TYPE 2BUILDING TYPE 2BUILDING TYPE 2BUILDING TYPE 2BUILDINGTYPE 3BUILDINGTYPE 3
BUILDINGTYPE 3FIGURE 2
Retention Area Roads Lots 2, 3 & 4 Park
Hard Undeveloped Landscaped Total Hard Turf Landscaped Weighted
Surfaces Area Area Area Coeff.Coeff.Coeff.Average C
(sf)(sf)(sf)(sf)C Coeff.C CAVG
Proposed 95,000 687,159 123,275 905,434 0.9 0.3 0.1 0.34
Total Lot Area 905,434 sf
Total Lot Area 20.786 acres
Sundance Sub Phase A and C
C Value Determination- 7-24-2018
J:\2013\B13-016 Rockworth-Sundance Apartments Phase 2\DOCUMENTS\7.24.18 COB Sub Infrastructure Re Submit\Storm
Drain Calcs - Sundance Retention.xls
TD&H Storm Drain Calculations
Project: Sundance Sub Phase A and C
Retention Calculations - 25 Year, 2 hr Event
7/24/2018
C Area 2-hr Q V Pond Top Pond Bottom Depth Actual Volume
(ac)(i) in/hr (cfs)(cf)Area (sf)Area (sf)(ft)(cf)
Retention Pond 0.34 20.79 0.28 1.943 13,991 16,421 13,108 1.00 14,765
Time to Concentration - A conservative time to concentration of 5 minutes was used in calculating 2-hr intensity.
Drainage Basin
Total Runnoff Volume
i_25=0.78×t^(-0.64)AiCQQV7200
J:\2013\B13-016 Rockworth-Sundance Apartments Phase 2\DOCUMENTS\7.24.18 COB Sub Infrastructure Re
Submit\Storm Drain Calcs - Sundance Retention.xls
APPENDIX
Original Preliminary Plat
Subdivision Design Report
1
SUNDANCE SUBDIVISION
PRELIMINARY PLAT DESIGN REPORT
Purpose and Introduction
The purpose of this report is to explain how water, sanitary sewer, and storm sewer
facilities will be designed to meet City of Bozeman Design Standards and provide service
to the Sundance Subdivision. The report will provide information on the preliminary
design of the above mentioned infrastructure. The boundary of the Sundance Subdivision
can be seen on the preliminary plat included in Appendix A.
The Sundance Subdivision is a minor subdivision located on the northwestern side of
Bozeman, Montana. The project is generally bounded by Caballo Avenue on the east,
Baxter Lane on the south, Davis Lane on the east and undeveloped property to the north.
The Sundance Subdivision consists of four lots and is zoned B-2.
While the exact use of the future lots has not been finalized, a proposed development plan
may include the following:
Lot Acreage Assumed Units 1Population
1 4.478 50,000 SF of General Office 0
2 9.189 216 Apartments 456
3 6.691 80 Town Homes 169
4 3.247 20,000 SF General Office 0
1Population is based on 2.11 people per unit.
The subdivision will be constructed in three phases with the possibility of additional,
future subdivisions. The Master Utility plan that includes phase boundaries can be seen
in Appendix B.
Design Report
Water
The proposed water system will tie into existing mains installed during the development
of Baxter Meadows Subdivision PUD Phase 2A and 2B. New water main connections
will be necessary to provide water service to the proposed lots and allow for future
expansion. Water line loops have been provided where practical.
The following summarizes the estimated demands created by the Sundance Subdivision
along with other design input:
• 625 people (residential)
• 5.7 acres of office space
2
• 170 gallons per day per person average (residential)
• 960 gallons per acre per day average (general business/business park)
• C Factor of 130
• 3:1 maximum (peak) hour to average day ratio
• 2.3:1 maximum day to average day ratio
All new water mains will be 8 or 10-inch diameter, class 51, ductile iron pipe. Hydrant
leads will be 6-inch ductile iron pipe. Due to the nature of the subdivision and the
anticipated use of the large lots, 8-inch diameter stubs will be or have previously been
extended to the proposed lots. This is being done to allow for construction of future
water mains and looping of water mains specific to the site plans that will be developed
for these lots.
As a result of phasing, two dead end water mains are possible but measure less than the
maximum dead end length of 500 feet. The maximum day plus fire flow scenario
indicates there is ample water provided by the current system to provide domestic and
fire flows to the end of the longest possible dead end main (Galloway Street). Our water
calculations indicate a fire flow on the order of 2,400 gallons per minute (gpm) with a
minimum system pressure of 20 pounds per square inch (psi) is achievable at the end of
the temporary dead end water main. Future looping will improve this available fire flow.
Water modeling and calculations are included in Appendix C.
Sewer
Each lot in the subdivision, except Lot 4, has at least an 8-inch sewer stubbed out to the
lot. A new 8-inch sewer main will be constructed to provide an 8-inch sewer stub to Lot
4 along with provided sewer service to the lots in Minor Subdivision 400. All new sewer
mains will be 8-inch diameter SDR 35 PVC. The sewer mains have been sized for the
development based upon the following values from the City of Bozeman Design
Standards and Specification Policy, Revised 3/31/2011:
Residential
• 2.11 people / unit
• 89 gallons / capita / day
• 150 gallons / acre / day infiltration
• 625 people
• 960 gallons per acre per day average (general business/business park)
New sewer mains will be designed to roughly parallel the road centerline grades. A
capacity check on 8-inch sewer main using the minimum slope of 0.4% and a Manning’s
friction factor of 0.013 indicates new wastewater flows from the subdivision will not
exceed the pipe’s capacity assuming 75% of the maximum capacity. Sewer calculations
are included in Appendix D.
3
Pavement Design and Construction
General
Three new road sections will be constructed to accommodate the Sundance Subdivision:
1. Caspian Avenue from Baxter Lane to Equestrian Lane (625 feet)
2. Equestrian lane from Caballo Avenue to east of Caspian Avenue (550 feet)
3. Galloway Street from Caspian Avenue to Davis Lane (725 feet)
The proposed roads line up with existing roads in the Baxter Meadows Development.
The alignment of these roads is in conformance with anticipated roads that were master
planned in the expired Baxter Meadows PUD. A City of Bozeman standard 60-foot
right-of-way and 35-foot wide (top back of curb to top back of curb) road section is
proposed.
Design Considerations
The performance of the pavement for The Crossing at Baxter Meadows Subdivision
depends upon several factors, including (1) the characteristics of the supporting soil; (2)
the magnitude and frequency of wheel load applications; (3) the quality of available
construction materials; and (4) the desired period of design life.
Based on the near surface materials encountered in the backhoe test pits, the predominant
subgrade will either be a poorly-graded gravel (GP) or a silty clay (CL) soil. We
recommend excavating to subgrade depth or natural gravel, which ever is encounter first,
to determine if the resulting subgrade is gravel or clay. If the subgrade is native gravel,
we recommend scarifying and re-compacting the upper 12 inches of the subgrade prior to
constructing the base course gravel and asphalt pavement section. If the resulting
subgrade is clay, we recommend over-excavating the clay, placing a geotextile, and
constructing the base course and sub-base gravel section on top of the geotextile prior to
placing the asphalt surfacing.
The magnitude and frequency of wheel load applications have been estimated based on a
20-year design life, and the following parameters were used along with the AASHTO
Pavement Design Method of Analysis to develop flexible pavement sections as detailed
below:
Reliability (R) = 95%
Standard Deviation (So) = 0.35
Design Period (N) = 20 years
18-kip Equivalent Single Axle Loads (ESAL’s) for Local Streets = 50,000
CBR (gravel) = 25 (Mr = 13,500 psi)
CBR (clay) = 3.0 (Mr = 4,500 psi)
Design Serviceability Loss = 1.9
4
Flexible Pavement Requirements
The proposed streets should be constructed with a total required flexible pavement
thickness and individual layer thickness as follows:
Local Streets w/ Native Silty Clay Subgrade:
3.0 inches of Hot Mix Asphaltic Concrete
6.0 inches of Base Course Gravel (1½ inch Minus Crushed)
18.0 inches of Sub-Base Gravel (Pit Run Gravel) or Native Subgrade Gravel
Scarify & Re-compact 12 inches of Clay Subgrade
*(Note: Separation/Stabilization Geotextile should be used for silty clay subgrade)
-----
27.0 inches Total Pavement Section
Specification Requirements
The following items should be incorporated into the project plans and specifications:
1. Hot Mix Asphaltic Concrete Surface – Montana Public Works Standard
Specifications (MPWSS) Performance Graded (PG) binder having a 58-28 grade in
accordance with AASHTO MP1.
2. Crushed Base Course – Crushed Base Course 1½ inch Minus Gravel conforming to
Section 02235 of the Montana Public Works Standard Specifications (MPWSS) - The
material should be compacted to a minimum of 95 percent of AASHTO T-99 Proctor
near optimum moisture content.
3. Sub-Base Course - Sub-Base Course 6 inch Minus Pit Run Gravel. The materials
should be compacted to a minimum of 95 percent of AASHTO T-99 Proctor near
optimum moisture content.
4. Separation/Stabilization Geotextile – Mirafi 600X Woven fabric, or equal, should be
used to facilitate compaction of sub-base gravels over saturated, pumping subgrade
soils. The geotextile should be specified between the subgrade soils and the sub-base
course gravel using the manufacturer’s recommendations.
The analysis and recommendations submitted in this report are based upon the data
obtained from soil boring logs at the site by SK Geotechnical in 2000 and 2001.
Variations occur between specific sites tested, the nature and extent of which do not
become evident until additional exploration or construction is conducted.
A re-evaluation of the recommendations presented in this report should be made after
performing on-site observations during construction to note the characteristics of any
variations.
5
Stormwater Treatment
Solids, silt, oils, grease and other pollutants will be removed from the stormwater prior to
discharge from the site as required by the City of Bozeman Design Standards. Existing
ponds and infrastructure exist in the area and were designed with future development in
mind. The western portions of the subdivision may discharge directly to the streets or
existing storm drainage infrastructure without being detained onsite. Existing detention
ponds east of Vaquero Parkway will detain this runoff and restrict runoff to pre-
development rates.
Catch basins with 9-inch sumps and detention ponds will collect and allow for heavier
solids to settle out before storm water is discharged into the Spring Ditch. The grass
lined detention ponds will also remove much of the grease, oils and silt from the
stormwater. Based on technical research, grass lined swales/ponds trap urban runoff
contaminants and provide a high level of treatment. Grease and oils coming in contact
with the grass will stick to the grass and biodegrade naturally.
Stormwater Conveyance
In the pre-developed condition, storm water that does not infiltrate into the ground flows
to the north. Existing runoff is ultimately conveyed off the property through the Spring
Ditch which flows in a northerly direction through the subdivision. The Spring Ditch is
considered a stream/ditch according to the Gallatin County Conservation District.
Because of the nature of this development and the large lot sizes, several possibilities
exist for further development of these lots. As a result, installation of storm drainage
infrastructure on the lots is not possible at this time. Future site plans and further
subdivision of the lots must account for their own storm water. Storm water on each lot
that is not already accounted for in previously installed infrastructure must be detained
onsite and released at the predevelopment rate. Storm water detention and conveyance
will be reviewed by the City of Bozeman for each lot individually though the site plan or
additional subdivision process.
Storm drainage calculations can be found in Appendix E.
Ground Water
This area of Bozeman is known for high ground water. A geotechical evaluation on the
lot to the west encountered shallow ground water. Depths to ground water may vary.
Road profiles throughout the development should be set above existing ground. Due to
the elevated ground water levels, careful consideration of ground water and assistance
from design professionals should be considered prior to installation of structures with
basements or crawlspaces.
APPENDIX A
Preliminary Plat
SURVEYED BY:QUALITY CHECK:JOB NO.FIELDBOOKDRAWN BY:DATE:ENGINEERING CONSULTANTSTHOMAS, DEAN & HOSKINS, INC.
QUALITY CHECK:DESIGNED BY:DRAWN BY:CAD NO.JOB NO.DATE:DESIGN REPORT BASEEngineeringtdhengineering.com1FIGUREB13-0169/10/14NAKLSKLSVICINITY MAPBOZEMAN, MONTANASUNDANCE SUBDIVISION
APPENDIX B
Master Utility Plan
LOT 36.691 ACRESLOT 29.189 ACRESLOT 14.478 ACRESSUNDANCE APARTMENTSBAXTER MEADOWSPHASE 2BBAXTER MEADOWSPHASE 2A, BLOCK 16BAXTER MEADOWSPHASE 2A, BLOCK 18BAXTER MEADOWSPHASE 2A, BLOCK 20CABALLO AVE.VAQUERO PKWY.GALLOWAY ST.CASPIAN AVE.KIMBERWICKE ST.VAQUERO PKWY.GALLOWAY ST.EQUESTRIAN LANEDAVIS LANE DAVIS LANEBAXTER LANEBAXTER LANEMINOR SUBDIVISION 400LOT 43.247 ACRESBAXTER MEADOWSPHASE 4CASPIAN AVE.
SPRING DITCH
KIMBERWICKE ST.LOT 2LOT 3LOT 4LOT 1PHASE APHASE CPHASE BPHASE BOUNDARY(TYP)SHEETDESIGNED BY:QUALITY CHECK:JOB NO.FIELDBOOKDRAWN BY:DATE:DR C1.1REV DATE
Engineering
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REVISION
SUNDANCE APARTMENTS
BOZEMAN, MONTANA
MASTER UTILITY PLAN
WATER AND SEWER B13-0169/5/14NA.DWGDR C1.1KLSNANALEGENDPHASE MAPJ:\2013\B13-016 Rockworth-Sundance Apartments Phase 2\CADD\CIVIL\DWG\DR C1.1.dwg, 12/3/2014 3:41:57 PM, KLS
LOT 36.691 ACRESLOT 29.189 ACRESLOT 14.478 ACRESSUNDANCE APARTMENTSBAXTER MEADOWSPHASE 2BBAXTER MEADOWSPHASE 2A, BLOCK 16BAXTER MEADOWSPHASE 2A, BLOCK 18BAXTER MEADOWSPHASE 2A, BLOCK 20CABALLO AVE.VAQUERO PKWY.GALLOWAY ST.CASPIAN AVE.KIMBERWICKE ST.VAQUERO PKWY.GALLOWAY ST.EQUESTRIAN LANEDAVIS LANE DAVIS LANEBAXTER LANEBAXTER LANEMINOR SUBDIVISION 400LOT 43.247 ACRESBAXTER MEADOWSPHASE 4CASPIAN AVE.
SPRING DITCH
SHEETDESIGNED BY:QUALITY CHECK:JOB NO.FIELDBOOKDRAWN BY:DATE:DR C1.2REV DATE
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REVISION
SUNDANCE APARTMENTS
BOZEMAN, MONTANA
MASTER UTILITY PLAN
STREETS AND STORM WATER B13-0169/5/14NA.DWGDR C1.2KLSNANALEGENDJ:\2013\B13-016 Rockworth-Sundance Apartments Phase 2\CADD\CIVIL\DWG\DR C1.2.dwg, 12/3/2014 3:49:30 PM, KLS
8"
10"
8"
Approximate Subdivision
Boundary
8"
8"
8"
15"
8"Approximate Subdivision
Boundary