Retrofit

SFO Terminal Upper Level Viaduct Improvements, Phase 2

Seismic retrofit of the Upper Level Viaduct structure adjacent to SFO Terminal 3.   Work included micropile installation, pilecap extension, column casing installation, grade beam construction and expansion joint widening at sliding door locations.  This project also included incidental roadway work such as sidewalk and island demolition and reconstruction, pavement overlay, underground utility relocation/installation, exhaust fan relocation, traffic control, …

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BART Earthquake Safety Program, Station Structures – C Line

ProVen retrofitted three BART stations along the C-Line, connecting Oakland to Bay Point: Orinda, Walnut Creek, and Pleasant Hill.  These retrofits entailed the respective excavations of all the station’s footings, surface demolition of columns, and forming around and drilling into all bent caps, followed by casting new reinforced concrete members and wrapping aforementioned columns in carbon …

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Colma Creek Flood Control Channel Wall Repair

This project included the repair and upgrade of a section of the Colma Creek at Spruce Avenue Bridge.  The existing concrete wall was removed and replaced with a concrete “U” channel, which created a concrete floor where the existing earthen bottom was.  PrōVen also replaced the failing walls with new ones.  The U-shaped wall construction …

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