HomeMy WebLinkAbout03.g. ADVISE THE BOARD OF THE CLOSEOUT OF THE A-LINE RELIEF INTERCEPTOR, PHASE 2A, DISTRICT PROJECT 5980Central Contra Costa Sanitary District
' BOARD OF DIRECTORS
- POSITION PAPER
Board Meeting Date: June 17, 201 O No.: 3.g. Consent Calendar
Type of Action: INFORMATIONAL
subject: ADVISE THE BOARD OF THE CLOSEOUT OF THE A-LINE RELIEF
INTERCEPTOR, PHASE 2A, DISTRICT PROJECT 5980
Submitted By:
Initiating Dept/Div.:
Paul Seitz, Associate Engineer Engineering /Capital Projects
REVIEWED AND RECOMMENDED FOR BOARD ACTION:
.~In. P. Seitz
U_ ~orA. Rozul A. Antkowiak A. Farrell ames M. Kelly,
eneral Manager
ISSUE: All work has been completed on the A-Line Relief Interceptor, Phase 2A,
District Project 5980, and this project can now be closed out.
RECOMMENDATION: Close out the project.
FINANCIAL IMPACTS: This closeout will result in approximately $990,000 being
returned to the Collection System Program: Attachment 1 shows the project
expenditures by category.
ALTERNATIVES/CONSIDERATIONS: Not applicable.
BACKGROUND: The A-Line Relief Interceptor, Phase 2A, is a joint project with the
City of Concord. The proposed project consists of two components: 1) construction of
approximately 3,100 linear feet of 96-inch diameter concrete sewer pipe (the A-Line
Relief Interceptor) and 2) construction of approximately 1,455 linear feet of 48-and
72-inch diameter pipelines from the Concord Pumping Station to the proposed A-Line
Relief Interceptor pipeline at the Meridian Park Boulevard/Galaxy Way intersection,
including parallel 48-inch diameter gravity flow sewer pipelines crossing beneath the
Walnut Creek Channel for approximately 400 feet to replace an existing force main.
On October 18, 2007, the Board of Directors authorized the award of a construction
contract for this work to Mountain Cascade, Inc. The Contractor was issued a Notice to
Proceed that was effective February 18, 2008, with a completion date of September 18,
2009. The project was accepted by the Board on October 15, 2009.
The original construction contract amount was $20,650,750. There were seventeen
(17) construction change orders issued in the total amount of $(52). The primary
reason for the total change order amount is that a credit change order was issued that
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POSITION PAPER
Board Meeting Date: June 17, 2010
Subject. ADVISE THE BOARD OF THE CLOSEOUT OF THE A-LINE RELIEF
INTERCEPTOR, PHASE 2A, DISTRICT PROJECT 5980
reduced the trucking cost of excavated material. The excavated material was used as
fill on the District Plant. The total amount paid to the Contractor was $20,650,698.
The total authorized budget for the project was $24,790,000, which included a
contingency of $1,548,800. The total project cost was $23,800,000, which is
approximately 4 percent less than the budgeted amount. The City of Concord
reimbursed the District $7,909,095 for their portion of the gravity inter-tie project. The
project closeout will result in $990,000 being returned to the Collection System
Program (see Attachment 1 for Expenditure Summary).
RECOMMENDED BOARD ACTION: This item is presented to the Board of Directors
for information. No action is necessary.
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ATTACHMENT1
A-LINE RELIEF INTERCEPTOR, PHASE 2A
DISTRICT PROJECT 5980
EXPENDITURE SUMMARY
ACTIVITY COST
Total Budget $24,790,000
Construction Contract $20,650,750
Change Orders $(52)
Change Order % of Construction p%
Total Construction Amount $20,650,698
Right of Way $214,500
Right of Way - % of Construction ~
Engineering, Design, CM, Admin. $2,935,800
Engineering, Design, CM, Admin. - % of Construction. 14.2%
TOTAL PROJECT EXPENDITURES $23,800,000
REIMBURSEMENT FROM CITY OF CONCORD FOR INTER-TIE $7,909,095
Amount to be Returned to the Collection System Program $990,000
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