How to bid on the Zarzamora 230 AC water main for San Antonio Water System

What San Antonio Water System is buying

San Antonio Water System is requesting sealed bids for about 4,941 linear feet of 16-inch water main, installed by open-cut construction, for the Zarzamora 230 AC – Phase 1 project in San Antonio. The solicitation is an invitation for bids, or IFB, identified as CO-00949.

This is a construction opportunity for firms that can perform water-main installation work.

Key dates and the bid deadline

Questions are due in writing by 3:00 p.m. CST on November 4, 2026. Answers are expected to be posted by 3:00 p.m. CST on November 11, 2026, as a separate document or part of an addendum. No pre-bid meeting is required.

Bids are due November 18, 2026, at 4:00 p.m. ET. Submit your bid as the project directs before the deadline; the provided information does not specify whether bids are submitted electronically or opened at the owner’s office.

Who this opportunity suits

This project may suit construction firms with experience installing water mains, particularly work involving open-cut methods and 16-inch pipe. Review the plans and specifications to determine whether your crew, equipment, and project experience fit the work.

How to access the bid documents

The project is managed on CivCast, where viewing is public. Register for a free CivCast account to download the plans and specifications and join the planholders list. Addenda notices come through CivCast.

For difficulties downloading plans and specifications, the solicitation says to contact the SAWS Contracting Department at 210-233-3341. Send solicitation or technical questions in writing to Mory Martinez using the email address provided in the solicitation, by the question deadline. Check CivCast for the project’s bid-submission directions.

Prepare a complete, competitive response

Read the plans and specifications closely, then check each bid form and submission instruction before preparing your response. Build your price around the described water-main work and the project details in the documents rather than relying on the summary alone.

Submit questions early enough to meet the deadline, review the posted answers and any addenda, and make sure your bid reflects them. Allow time to complete the submission in the manner the project directs before the stated deadline.