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San Antonio “Y” Bridges

San Antonio, Texas

Owner: Texas Department of Transportation

Design / Construction Engineering and Inspection Support: FIGG

The San Antonio Downtown “Y” (IH-10 and IH-35) is the major artery for traffic moving in and out of downtown San Antonio. To alleviate congestion and improve capacity from 6 lanes to 12 lanes, over 29,000 linear feet of elevated structure was built in the existing right-of-way. Building from above allowed traffic on the adjacent interstate, frontage road, and local crossroads to be maintained during construction in these key corridors. Three contracts totaling 1.3 million square feet of bridge deck were built at a cost of $65 million, saving the Owner $8.5 million over the alternate design bid.

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