Agenda

Return

C. 67

To:	Board of Supervisors
From:	Monica Nino, County Administrator
Date:	March 21, 2023

Contra

Costa

County

Subject:

APPROVE and AUTHORIZE Change Order with Webcor to Increase Payment Limit due to Unknown Costs, Relocation of Antenna and Building Design Changes

APPROVE	OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR	RECOMMENDATION OF BOARD COMMITTEE

Action of Board On: 03/21/2023

APPROVED AS RECOMMENDED

OTHER

Clerks Notes:

VOTE OF SUPERVISORS

AYE:

John Gioia, District I Supervisor
Candace Andersen, District II Supervisor
Diane Burgis, District III Supervisor
Ken Carlson, District IV Supervisor
Federal D. Glover, District V Supervisor

Contact:

Eric Angstadt, 655-2042

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: March 21, 2023
Monica Nino, County Administrator

BY:	, Deputy

RECOMMENDATION(S):

APPROVE and AUTHORIZE the County Administrator, or designee, to execute a change order to increase the payment limit by $5.3 million dollars, to a new payment limit of $63,538,551, with Webcor Construction L.P., a Delaware Limited Partnership, due to increased cost from unknown hazardous materials encountered during the demolition of the tower at 651 Pine Street, costs associated with the relocation and construction of a new emergency radio antenna station and design changes requested by the departments who will occupy the new building.

FISCAL IMPACT:

The Board of Supervisors approved a total project budget of $75 million. This action does not increase the total project budget, it simply reallocates $3.5 miilion of contingency funding included in the total project budget to the construction contract. It also moves $1.8 million from the Antenna Relocation Project, approved by the Board of Supervisors with a total project budget of $15 million, to the construction contract for the building of the new antenna site and tower needed to relocate the emergency antenna from the 651 Pine Street tower to the new site on East Bay Regional Parks land in Martinez.

BACKGROUND:

This change order is necessary to cover increased costs associated with several aspects of the project. The first aspect of cost increases involve unknown and increased hazardous materials discovered during the demolition of the 651 Pine Street complex and the costs associated with delays necessitated by AT&T rerouting telephone lines that were in the 651 Pine Street complex. The second aspect is the cost associated with building a new antenna site and tower to relocate the emergency radio antenna that was on the 651 Pine Street tower. That antenna is used by police, fire and other first responders throughout the county and is a necessary part of the emergency response system. The only site that could be used to relocate the antenna had to be sited on an undeveloped piece of land in the hills owned by East Bay Regional Parks. We ultimately had to build a new road and tower to relocate the emergency antenna. Finally, as we developed the design of the building and worked with the departments that are going to move into the new building additional features and needs were identified. These additional costs are typical of a design-build procurement method and are why the total project budget includes contingency funds to be used as needed.

CONSEQUENCE OF NEGATIVE ACTION:

Not approving the action would leave the County departments without the design features they need to perform their missions in the new building.