The City of Stockton constructed a new intake structure on the San Joaquin River, which included approximately 20 miles of pipeline, and a new water treatment plant.
Client: City of Stockton
Location: Stockton, CA
The proposed pipeline was 54-inch in diameter and the top of the pipe was approximately three feet below the ground surface.
As part of the scope of work, AGS evaluated stability and seismic safety of the existing levees adjacent to San Joaquin River and provided recommendations for surcharging and time-dependent settlement mitigation of the soils underlying the existing levees. AGS performed a geotechnical study, including exploring and evaluating subsurface conditions and developing site-specific geotechnical conclusions and recommendations for design and construction of the intake structure, the related pipelines, and the water treatment plant. The field exploration has consisted of 4 borings drilled in the water treatment plant site, 22 along the pipeline, and additional 3 borings at the proposed intake structure. The work included trenchless pipeline construction, drilling on private property, developing recommendation for dewatering and site improvement in soft clayey soils.
