Part of restoring the Everglades to an ecologically balanced condition by reducing levels of phosphorous in the water created from farmland storm water run-off, the $2.3 million project included installing a new intake and pump station in Palm Beach County, Fla. Due to the remote location in the Everglades, Gilbert Southern Corp. maintained an on-site office throughout construction.
The $11 million project involved installing 7,000 linear feet of pipeline, a two-million-gallon concrete reservoir, a booster pump station, consisting of five vertical turbine pumps, water treatment facilities, a new arsenic treatment system and a well development. To increase the station's water distribution pressure, crews constructed each zone with three 100-horsepower and two 75-horsepower vertical turbine pumps with variable frequency drives, which extend down 37 feet into a header, supplied with water from the bottom of the reservoir.
Kiewit was selected by the City of Somerton for the expansion of their Sequential Batch Reactor (SBR) Wastewater Treatment Plant (WWTP). Prior to the design commencing, Kiewit performed cost modeling and constructability reviews to aid in the determination if a Biological Nutrient Removal Process (BNR) design would be more beneficial than the original concept. Kiewit provided anticipated construction costs and schedules for the conversion of the existing SBRs to a BNR. Kiewit performed the same analysis in developing the cost and schedule for the construction of additional SBRs. These side by side comparisons allowed the selection of the best value expansion approach for the WWTP. The BNR approach was selected and increased the current .8 MGD to 1.8 MGD for an addition of .6 MGD in capacity from the original concept.
Kiewit Pacific Co. constructed the world's largest prestressed concrete tanks. The $86 million Hollywood Hills Quality Improvement Project consisted of two 30-million-gallon underground water storage tanks and a 1-mi.-long tunnel bypass system to provide safe drinking water for nearly 500,000 customers in the Hollywood area.
The City of Bakersfield awarded Kiewit Pacific Co., a subsidiary of Kiewit Corporation, a $29 million project to upgrade the existing Bakersfield Wastewater Treatment Plant. To date, this project is the largest contract the City of Bakersfield has ever awarded.
A Kiewit-led joint venture was selected in December 1997 to construct a key component of the new $2.2-billion water delivery and treatment system for the Las Vegas valley. This $83-million project involved constructing a 12-ft.-dia. intake shaft positioned 240 ft. below Lake Mead's surface, capable of handling 600 million gallons of water per day.
In May 2000, Kiewit Pacific Co. was selected to construct this $98 million, 12 MGD water treatment plant. The project consists of 31 structures, including an administration building, three oxidation ditches, four secondary clarifiers, two waste-activated sludge tanks, a solids handling basin, a chlorine contact basin, filter building, chemical feed building and influent pump station.
This $13 million project involved construction of two new pump stations, which included all structural, architectural, mechanical, and electrical requirements. At the request of the local community, the project team worked together with the owner to redesign and offer solutions to ultimately satisfy the local concerns regarding the aesthetics, which resulted in a Tuscan style building exterior. This project required extensive coordination with local residents, which included door-to-door contact, meetings, and flyers within the community.
Kiewit Pacific Co. is constructing the existing surge shaft in two phases to install 550 vertical feet steel pipe 96 inches in diameter. The team engineered and performed the water treatment, collection system and road improvements.