Professional Engineering and Environmental Consulting Services between the City of Huntington Beach and Moffat & Nichol for the Gilbert Bridge Project, CC-1453, in Huntington Harbour Subtitle: Public Works Department
Date: August 6, 2024
BACKGROUND
Project Area: Gilbert Drive Bridge (Bridge Nol 55C0258) over Shelter Channel in Huntington Harbour The existing structure, originally built in 1963, is a continuous 3-span welded steel girder bridge over Shelter Channel and is the sole access to the residential community located on Gilbert Island in Huntington Harbor. The foundations consist of timber piles supporting reinforced concrete bents and abutments. In 1996, the bridge received a seismic retrofit.
NEED/WHY/BENEFITS
Based on the field observations contained in the City's Master BPMP study and biannual inspection reports provided by Caltrans it is recommended this bridge receive bridge maintenance to prolong life.
Moffat and Nichol will provide further field investigations and design a rehabilitation strategy for the bridge.
DETAILS
Design expected to commence Fall 2024
Expected completion date: Fall 2025
City Costs: $484K
Moffat and Nichol will evaluate bridge, but reports recommend removing and patching any unsound concrete, delamination, and spalls. Reports recommend removing rust and repainting girders and exposed rebars.
RECOMMENDATION
Approve Agreement for Professional Engineering and Environmental Consulting Services between the City of Huntington Beach and Moffat & Nichol for the Gilbert Bridge Project, CC-1453, in Huntington Harbour
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