PROJECT DETAILS

Location

Tracy, California

Client

California State Parks and Recreation

SIZE

8 Miles

About this Project

Our team was retained by the California State Parks and Recreation to prepare comprehensive civil engineering design plans to improve over 8 miles of road and off highway vehicle riding trails and three large water quality treatment basins for the Carnegie State Vehicular Recreation Area located in Livermore, California.  Our project had various design improvements including trail realignments, trail surfacing, new culverts, two (2) precast bridge crossings, boulder step pools, and paver lined ford creek crossings to slow runoff, reduce sedimentation to downstream drainages, and improve access for recreational riders and emergency vehicles.  We designed three large water quality basins to capture sediment from the three largest watersheds in the park.  The water quality basins include two or three large earthen basins designed with inlet and outlet control structures to control flows through the basins and to maximize the removal of coarse and fine sediments.

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