Freeport Water Intake Facility

Freeport Water Intake Facility

From its perch alongside the Sacramento River, the Freeport Water Intake Facility draws in water and pumps it to Sacramento County for treatment. And not just a little water – the Freeport intake and pump station can deliver a maximum 185 million gallons of water each day.

From its perch alongside the Sacramento River, the Freeport Water Intake Facility draws in water and pumps it to Sacramento County for treatment. And not just a little water – the Freeport intake and pump station can deliver a maximum 185 million gallons of water each day.

Location
Sacramento, CA
Client
Sacramento County Water Agency
Year Completed
2011
Sector
Water
Value
$100M - $700M
Market Type
Intake
Services
General Contracting

Balfour Beatty served as the general contractor responsible for the construction of a new raw water intake and pumping plant on the Sacramento River. The project included the demolition – including non-hazardous and hazardous material removal – of an existing wastewater treatment plant, and the construction of a sheet pile cofferdam with a 10-foot thick tremie seal slab. This made way for the construction of a new architecturally innovative pump building that sits atop a 20,000-CY structural concrete intake structure. The pump building and intake structure house eight 2,000 HP pumps and motors with variable frequency drives that deliver a combined maximum 185 MGD of raw water to both Sacramento County and East Bay Municipal Utility District (EBMUD) for treatment.

Other significant components of the project included a 60-foot deep, 600-foot long slurry cut off wall in the levee to meet current Army Corps of Engineers standards, a control building, valve and meter vaults, chemical facility, maintenance facility, five 130-LF of 36-inch to 84-inch diameter welded steel piping, two micro-tunneled Caltrans I-5 highway crossings, NOAA-compliant fish screens with travelling submerged screen cleaners, over 10,000-LF of process piping above ground, chain and flight sedimentation collection, compressed air surge control system with 14-foot diameter surge tanks, roller compacted concrete settling basins and extensive landscaping and architectural features.

The project specified a state-of-the-art electrical and instrumentation package that included a 69 KV substation, 5 KV switchgear, controls, instrumentation and SCADA systems that allow the entire facility to be operated remotely from a single laptop computer. 

The plant owner is responsible for operation. The plant is unmanned and is fully automated to allow remote operation.