CH2M Hill provided planning studies and analysis for the full project and final design services for the Sacramento River Intake and Pump Station facilities, which required two microtunnel crossings.
The Freeport Regional Water Authority is a joint authority of the East Bay Municipal Utility District (EBMUD) and the Sacramento County Water Agency (SCWA).
The Freeport Regional Water Authority Intake Facilities Project is a $US121 million regional raw water supply project on the Sacramento River with 185 million gallons per day total design capacity, serving both EBMUD and SCWA.
The project includes diverting water from the Sacramento River at Freeport Bend and pumping to the SCWA and EBMUD delivery points via an 18 mile transmission pipeline system. Key geotechnical aspects of the project include in-river development of a cofferdam and drilled pier foundation consisting of over 200 36 inch cased piers, construction of a 80 ft deep levee cutoff slurry wall, installation of anchored sheetpile bulkhead training walls, and completion of two 102 inch microtunnel crossings of Interstate 5, Freeport Boulevard, railroad tracks, and a canal.
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Design of these elements was completed by CH2M Hill’s geotechnical engineers with data collection services provided by AGS Inc.
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