Water/Wastewater

Everglades Pump Stations G-404 and G-409

Broward, Fla.

Kiewit Southern Co. was awarded this $6.5 million contract for Pump Stations G-404 and G-409 as part of the South Florida Water Management District's goal of restoring the Everglades to its previously ecologically balanced condition.

Central Feeder

San Bernardino, Calif.

This $61 million project involved the design and construction of a water transmission system. The success of the shutdown, tie-in, and restart was due to the project team's well planned coordination and communication with the local agencies and community.

Everglades Pump Station G-337

Palm Beach County, Fla.

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.

Gilbert Reservoir and Pump Station

Gilbert, Ariz.

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.

Somerton Wastewater Treatment Plant Expansion

Somerton, Ariz.

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.

Bakersfield Wastewater Treatment Plant #3

Bakersfield, Calif.

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.

Hollywood Hills

Hollywood, Calif.

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.

Lake Mead Intake No. 2

Las Vegas, Nev.

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.

Pleasant Grove Wastewater Treatment Plant

Roseville, Calif.

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.

Mauldin Road Wastewater Treatment Plant

Greenville, S.C.

Completed for the Western Carolina Regional Sewer Authority, this $59.8 M contract includes increasing the capacity of the existing Mauldin Road Wastewater Treatment Plant from 29 MGD to 70 MGD.