Seismic Retrofit & Painting of First Ave. Bridge Over Maple Ave.

    Seismic Retrofit & Painting of First Ave. Bridge Over Maple Ave.

    • Location: San Diego, CA
    • Agency: City of San Diego
    • Project Value: $7,059,635.00

    Project Description

    Reyes Construction, Inc. was awarded this project in October 2008. The Seismic Retrofit and Painting of First Avenue Bridge Over Maple Canyon is a historical steel arch bridge constructed in 1913 in the City of San Diego. The bridge structure is to be modified to comply with the California Department of Transportation (Caltrans) standards for seismic safety. The projects design goal for the bridge structure retrofit is to retain its current appearance with complying with The Secretary of the Interior's Standards for Treatment of Historic Properties for Rehabilitation (The Standards). Construction retrofit activities include the following: removal and replacement of portions of the concrete deck and sidewalks; addition of "deadman" anchor blocks and restrainer rods behind the abutments; strengthen abutments One and Six by increasing stem thickness; construction of fill-in wall between left and right columns at Pier Two; strengthen the bottom concrete anchor bolt assemblies at Piers Three, Four, and Five; strengthen the bottom portions of the columns at Piers Three, and Four with steel tie plates and strengthen footings at Piers Three, Four, and Five with reinforced concrete encasement.    Rehabilitation measures that will be implemented in conjunction with the seismic retrofit will be: Lead paint abatement scheme and repainting of the structural steel and metal railing to the original bronze-powder color; replacement of the deteriorating asphalt concrete overlay on the bridge deck to be conducted with a polyester concrete overlay matching the original construction condition and replacement of the existing expansion joint metal; and replacement of the missing historic light structures.