HomeMy WebLinkAboutResolution No. 4301, Change order 1 for CTEP College/Huffine Shared use pathway Commission Memorandum
REPORT TO: Honorable Mayor and City Commission
FROM: Ron Dingman, Parks and Recreation Director
Chuck Winn, Assistant City Manager
SUBJECT: Resolution 4301authorizing the City Manager to sign
Change Order #1 for the CTEP College/Huffine Shared Use Pathway project.
MEETING DATE: November 29, 2010
AGENDA ITEM TYPE: Consent
RECOMMENDATION: Approve Resolution 4301authorizing the City Manger to sign
Change Order #1 in the amount of $13,056.50, for Quest cable relocation, additional excavation,
fill, and geo-textile material, and added concrete removal and disposal costs related to the CTEP
College/Huffine Shared Use Pathway project.
BACKGROUND: Duneman Construction began construction on the CTEP College/Huffine
Shared Use Pathway project on October 4, 2010. Since beginning construction there has been a
need for a change order related to sidewalk removal, pathway realignment, and unstable soils.
The thickness of the existing sidewalk along Huffine that was removed by the contractor was
discovered to be 6 to 10 inches in thickness which resulted in additional hauling and disposal
costs. Sidewalks are normally 4 inches thick and bids came in based on that assumption.
Another part of this change order involves realignment of the Pathway, eliminating the need to
move irrigation lines and a sign.
Additionally, the contractor discovered mucky, unstable material in the sub-base beneath the
sidewalk adjacent to the Bozeman Daily Chronicle building. This required additional excavation
and fill, and geo-textile in order to stabilize the base, as well as a relocation of a phone cable.
Below is Robert Peccia and Associate’s breakdown of the change order items and their
associated costs.
Item
Number
Description Quantity Units Unit Price Amount Basis of Unit Price
1 Additional
Clear/Grub/Excavation
45 CY $12.71 +$572.00 Derived from Schedule of
Values
2 Non-Removal USDA Sign 1 Each $55.00 (-$55.00) Bid Item 11
3 Non-Install USDA Sign 1 Each $425.00 (-$425.00) Bid Item 10
4 Remove Thickened Sidewalk 639 SY $3.50 +$2,236.50 Bid Item 2 Proportioned
5 Relocate Qwest Phone Line 1 LS $1,728.00 +$1,728.00 Negotiated LS Cost
6 Muck Excavation in Front of
Chronicle Building
360 CY $4.50 +$1,620.00 Negotiated
7 Install
Separation/Stabilization
Geotextile
720 SY $1.25 +900.00 Negotiated
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8 Import/Place Pitrun
Cobble/Gravel Backfill
360 CY $18.00 +$6,480.00 Negotiated
Items 1 – 3: Work Directive Change to shift path alignment on Align “A”, east of Ferguson to
eliminate having to remove and relocate the USDA sign at Station 24+43. Alignment shift from
approximate Station 22+50 to 25+50. Shifting 2’ south off of planned alignment created
estimated 45 cubic yards (CY) of additional clearing, grubbing and excavation. Based on the
Schedule of Values and Engineer’s estimate of overall project excavation, a $12.71/CY unit cost
was derived. The alignment shift eliminated having to remove one sign (USDA) and install new
(USDA). Net work cost Items 1-3 = +$92.00. The work is deemed appropriate as the USDA
understood and approved the planned sign relocation, but preferred not, and shifting the
alignment slightly improved project schedule by limiting irrigation impacts.
Item 4: Throughout Alignment “A” the Contractor encountered thickened concrete sidewalk
over and above typical installation standard of 6” thick for a sidewalk to allow vehicle access
(City of Bozeman and Montana Public Works (MPW) standards). The sidewalk removed
averaged 8 inches thick thus slowing the process of sidewalk removal, and increasing disposal
costs. An 8”/6” ratio is applied (or +33% volume increase), for a net cost of +$3.50 per square
yard (SY) greater than the $10.75 per SY bid to remove 6” thick concrete sidewalk. Net work
cost = +$2,236.50.
Item 5: Contractor encountered a Qwest phone line (marked on plans) within the planned
excavation limits running longitudinally along Alignment “B” in front of the Bozeman Daily
Chronicle. The depth was much shallower than typical installation, at about 6” – 18” below
bottom of sidewalk. Expectations are that this utility should have been about 30” below grade
per standards. As the line was in direct conflict with the work and needed to be buried deeper to
resume project excavation, a cost of $1,728 was negotiated to trench the line deeper between
approximate Stations 11+35 to 16+74.
Items 6 – 8: The material encountered while excavating along Alignment “B”, from
approximate Station 11+35 to 16+74 was very moist clay. The material does not support the
weight of construction equipment and therefore would be problematic to support the planned
pavement and crushed aggregate base course. The material rutted and offers no solid support for
building upon and is considered needing “muck excavated”. To support the weight of
construction equipment, it was determined that the most cost effective solution is to use a
separation/stabilization geotextile with 18” deep cobble/gravel bank pit run backfill to build the
proposed path base on. Net work cost = + $9,000.00
SUMMARY OF COST AND TIME:
COST BREAKDOWN: TIME BREAKDOWN:
ORIGINAL CONTRACT PRICE: $439,719.15 START OF CONSTRUCTION: October 4, 2010
PREVIOUS CHANGE ORDER AMOUNT: $0 CALENDAR DAYS BY CONTRACT: 45
CURRENT CONTRACT PRICE: $439,719.15 CONTRACT COMPLETION DATE: November
17, 2010
AMOUNT OF THIS CHANGE ORDER: +$13,056.50 NUMBER OF DAYS GRANTED THIS CHANGE
ORDER: 05
NEW CONTRACT PRICE: $452,775.65 NEW CONTRACT COMPLETION DATE:
November 22, 2010
The completion date as set forth in the contract documents shall be (unchanged, increased, decreased)
by 05 calendar days. The date for completion of all work will be November 22, 2010 .
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UNRESOLVED ISSUES: As the project proceeds east, it is unknown whether or not the sub-
base soil will be stable as the existing sidewalk is removed.
ALTERNATIVES: As suggested by the City Commission.
FISCAL EFFECTS: The original Construction contract price is $439,719.15. This
change order totals $13,056.50 bringing the Construction contract total to $452,875.65. This will
increase the City’s CTEP match by $1,752.18 resulting in the City’s total out-of-pocket matching
commitment being $27,034.23.
Projects funded by CTEP Allocation (held by the MDT) require a 13.42% Local Match. As a
reminder, the City’s original match was $81,082.05 for this project. Easement donations were
obtained from adjacent property owners and the value of those easements is $55,800. This is eligible for
use toward the CTEP match which reduced our obligation to $25,282.05.
Attachments: Change Order Form #1
Change Order Resolution # 4301
Report compiled on: November 3, 2010
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COMMISSION RESOLUTION NO. 4301
A RESOLUTION OF THE CITY COMMISSION OF THE CITY OF
BOZEMAN, MONTANA, APPROVING ALTERATION/MODIFICATION OF
CONTRACTWITH DUNEMAN CONSTRUCTION, BELGRADE, MONTANA.
WHEREAS, the City Commission did, on the 23rd day of August 2010, authorize award of the
bid for the Construction of the College/Huffine Shared Use Pathway, to Duneman Construction,
Belgrade, Montana; and
WHEREAS, Section 7-5-4308, Montana Code Annotated, provides that any such alterations or
modifications of the specifications and/or plans of the contract be made by resolution; and
WHEREAS, it has become necessary in the prosecution of the work to make alterations or
modifications to the specifications and/or plans of the contract.
NOW, THEREFORE, BE IT RESOLVED by the City Commission of the City of Bozeman,
Montana, that the proposed modifications and/or alterations to the contract between the City of Bozeman,
a municipal corporation, and Duneman Construction, Belgrade, Montana, as contained in Change Order
#1, attached hereto, be and the same are hereby approved; and the City Manager is hereby authorized and
directed to execute the contract change order for and on behalf of the City; and the City Clerk is
authorized and directed to attest such signature.
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Resolution No. 4278 Change order #13
Page 2 of 2
PASSED AND ADOPTED by the City Commission of the City of Bozeman, Montana, at a
regular session thereof held on the 29th day of November, 2010.
__________________________________________
JEFFREY K. KRAUSS
Mayor
ATTEST:
________________________________________
STACY ULMEN, CMC
City Clerk
APPROVED AS TO FORM:
__________________________________________
GREG SULLIVAN
City Attorney
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