East Las Palmas Avenue Bridge Maintenance Project

East Las Palmas Avenue Bridge Maintenance Project

Stanislaus County, in coordination with the California Department of Transportation (Caltrans), proposes to perform maintenance on the Las Palmas Avenue Bridge (No. 38C-0033) over the San Joaquin River (see Figures 1-3). The primary goal of maintenance is to clean the existing steel casings that surround the concrete bridge columns between piers 4 and 8. The cleaning will remove the sections of corrosion on those piers and then install new supplemental grouted steel column/pile encasements around the existing steel casings. These new encasements would both strengthen the piles and protect them from further corrosion. The proposed new encasements would be installed to cover a minimum of three feet beyond the limits of the existing corrosion for both the normal high and low water conditions. Rehabilitation of these piles would not substantially reduce the area between the piles which would ensure channel flow is not obstructed. A preliminary design detail of these casings is included in Figure 4. See NOC for full document description.

Patterson

Stanislaus

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, Central Region 4 (CDFW), California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of State Parks, Division of Boating and Waterways, California Department of Transportation, District 10 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California San Joaquin River Conservancy (SJRC), Central Valley Flood Protection Board, Delta Stewardship Council, State Water Resources Control Board, Division of Water Quality, California State Lands Commission (SLC), Department of Toxic Substances Control, California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)

California State Lands Commission (SLC), Department of Toxic Substances Control, California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)

Transportation (Bridge Maintenance)

Transportation

Aesthetics, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Flood Plain/Flooding, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Noise, Public Services, Transportation, Wetland/Riparian