Inter-Departmental Correspondence

Department of Public Works



May 7, 2002


June 4, 2002



Honorable Board of Supervisors


Neil R. Cullen, Director of Public Works


Waterproofing of the Cupola of the San Mateo County Courthouse, Redwood City, CA 94063 (Project No. P6801)



Adopt a resolution awarding and authorizing execution of a contract for the waterproofing of the cupola of the San Mateo County Courthouse.


Previous Board Action

Adopted Resolution No. 65150 on March 26, 2002, adopting Plans and Specifications, determining prevailing wage scales, and calling for sealed proposals for waterproofing of the cupola of the San Mateo County Courthouse.



On April 23, 2002, bids were accepted for this project and subsequently referred to this office for checking and recommendation. The bids have been checked and the base bid, and the base bid plus the alternate bid to replace the sealant on the Courtroom A skylight, of:


Western Waterproofing Company Inc.

49 Larkspur Street

San Rafael, CA 94901


at $332,000 and $336,840 respectively were the lowest bids received.


The Architect's Estimate was $372,500 for the Base Bid and $377,500 for the Base Bid plus the skylight alternative. A summary of the bids received is:



Base Bid

Base Plus Skylight Alt



Western Waterproofing Company Inc.





Best Roofing & Waterproofing





Architectural Glass & Aluminum


No Bid



Gonsalves & Stronck Construction Co. Inc.




We are recommending that a contract be awarded to Western Waterproofiing Company Inc. based on the Base Bid plus alternative amount of $336,840.


We have reviewed the contract documents and have determined that the Affirmative Action Program submitted by Western Waterproofiing Company Inc. is in accordance with the current Affirmative Action Guidelines.


Vision Alignment

We believe our recommendation is consistent with Goal Number 20, "Government Decisions are Based on Careful Consideration of Future Impact, Rather than Temporary relief or Immediate Gain," of the Shared Vision Commitment to provide a "Responsive, Effective and Collaborative Government," as the Old Courthouse is part of the heritage of the County and this project will help to preserve this facility for the enjoyment and education of future generations.


Fiscal Impact

The total estimated cost of construction and contingencies is $388,000, which includes a fifteen percent (15%) contingency. We are recommending a 15% contingency as our experience has been that additional unforeseen work may be encountered when working on buildings the age of the Courthouse and when remodeling or retrofitting existing facilities, as the facilities' structural components are not exposed until after the work begins. Additional work as may become necessary will be covered by contract change order and the contractor will not be entitled to additional payments without an approved contract change order executed by the Director of Public Works.


An Appropriation for the work was approved in the 2001/02 Capital Projects Budget and is financed with $125,000 in State grants, $53,000 in Courthouse Construction Funds and $210,000 in General Funds. There is no additional impact to the General Fund


A form of resolution has been approved by County Counsel.