PrōVen constructed a viaduct consisting of CIDH piles, concrete columns, and steel girders. We constructed a bridge a quarter of a mile over live traffic in a congested urban environment in downtown San Francisco. Work on the quarter mile long structure included drilled piers, massive architectural concrete columns, wood falsework over live traffic, steel bridge girders, and a concrete deck. Architectural hardscape improvements to Mission Street included cobblestone sidewalks, granite curbs, and wrought iron fencing.
| Location: | South Van Ness Avenue to Market Street San Francisco, California |
| Start Date: | October 2003 |
| Completion Date: | October 2006, 552 working days |
| Contract Value: | $27,503,534 |
| Owner: | State of California Department of Transportation Contract No. 04-291004 |
| Engineer: | State of California Department of Transportation |