HomeMy WebLinkAboutMINUTES - 09152015 - C.07RECOMMENDATION(S):
APPROVE and AUTHORIZE the Public Works Director, or designee, to execute Contract Amendment No. 6 to the
Consulting Services Agreement with T.Y. Lin International (TYLin), effective January 1, 2015, to increase the
payment limit by $153,300 to a new payment of $929,345, to provide design, environmental, and construction
support services for the Orwood Road Bridge Replacement Project, Brentwood area. (Project No. 0662-6R4076)
FISCAL IMPACT:
CSA Amendment No. 6 allows for an additional $153,300 above the previously approved contract payment limit of
$776,045. The increase in payment is to be funded by 80% Federal Funds and 20% Local Road Funds.
BACKGROUND:
The existing Orwood Road Bridge was constructed in 1947. The bridge is constructed primarily of wood
components. As a result of its age and exposure to a marine environment, the bridge is coming to the end of its
serviceable life.
APPROVE OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR RECOMMENDATION OF BOARD COMMITTEE
Action of Board On: 09/15/2015 APPROVED AS RECOMMENDED OTHER
Clerks Notes:
VOTE OF SUPERVISORS
AYE:John Gioia, District I
Supervisor
Candace Andersen, District II
Supervisor
Karen Mitchoff, District IV
Supervisor
ABSENT:Mary N. Piepho, District III
Supervisor
Federal D. Glover, District V
Supervisor
Contact: Kevin Emigh, 925-313-2233
I hereby certify that this is a true and correct copy of an action taken and entered on the minutes of the
Board of Supervisors on the date shown.
ATTESTED: September 15, 2015
David Twa, County Administrator and Clerk of the Board of Supervisors
By: June McHuen, Deputy
cc:
C. 7
To:Board of Supervisors
From:Julia R. Bueren, Public Works Director/Chief Engineer
Date:September 15, 2015
Contra
Costa
County
Subject:Contract Amendment with T.Y. Lin International, Brentwood area.
BACKGROUND: (CONT'D)
On May 5, 2005, the Board of Supervisors approved the CSA for design of the bridge replacement project with
TYLin.
On November 27, 2007, the Board approved Amendment No. 1 to the CSA to increase the payment limit by $78,650
for additional bridge design services due to modifications to the bridge design. The modifications included adding an
8-foot wide pedestrian trail on the new bridge and modifying the approach roadway design to minimize the impacts to
adjacent property owners.
On June 23, 2009, the Board approved Amendment No. 2 to the CSA to increase the payment limit by $68,320 in
order to provide environmental consulting services.
On April 5, 2011, the Board approved Amendment No. 3 to the CSA to increase the payment limit by $125,289 in
order to provide additional environmental consulting services and project management services.
On December 6, 2011, the Board approved Amendment No. 4 to the CSA to increase the payment limit by $15,755
in order to provide additional design and environmental services.
On June 4, 2013, the Board approved Amendment No. 5 to the CSA to increase the payment limit by $76,915 in
order to provide additional design and environmental services.
Proposed Amendment No. 6 will amend payment limits in order to provide additional design, environmental, and
construction support services.
CONSEQUENCE OF NEGATIVE ACTION:
Public Works staff does not have the expertise to perform this work in-house. Negative action will result in the Public
Works Department having to hire other environmental and design consultants, which will delay project completion
and possibly jeopardize Federal funding.