California Department of Transportation

Contract 09-346604

The responses to bidder's inquiries, unless incorporated into a formal addendem to the contract, are not a part of the contract and are provided for the bidder's convenience only. In some instances, the question and answer may represent a summary of the matters discussed rather than a word-for-word recitation. The availability or use of information provided in the responses to bidder's inquiries is not to be construed in any way as a waiver of the provisions of Section 2-1.03 of the Standard Specifications or any other provision of the contract, the plans, Standard Specifications or Special Provisions, nor to excuse the contractor from full compliance with those contract requirements. Bidders are cautioned that subsequent responses or contract addenda may affect or vary a response previously given.

Q1) I am trying to find out exactly what needs to be done to the Modified bridge rail regarding the galvanizing and acid treatment. The special Provisions say that the supplier will need to submit two samples of chemically treated galvanized steel. Is this all that we will need to do? Will the entire length of rail need to be chemically treated? What is the purpose of treating the galvanized steel?

A1) The entire length of rail (including posts - basically, all exposed metal) is to be chemically treated. Per the specifications, the contractor shall submit two samples (one 30 second wash & one 40 second wash) for approval prior to fabrication. The purpose of the treatment is to reduce the shiny surface of the metal components.