The existing Twin Span Bridge over Lake Pontchartrain, La. was heavily damaged by Hurricane Katrina. The powerful storm surge knocked many of the bridge's concrete segments into the lake. As part of a joint venture team, Kiewit crews constructed 1.1-mile-long high-rise portion of the new twin Interstate 10 bridges.
Working at a depth of 80 feet, crews from Kiewit Pacific Co. pumped groundwater from the excavation site at a rate of 14 million gallons per day to construct New Natomas and South River Pumping Stations. The scope of work at each site involves excavation support, dewatering, constructing new below-grade and at-grade concrete structures and installing mechanical equipment.
The project included the design and construction of transmission structure foundations, including upgrading and converting existing 138kV to 230kV with new structures, power conductors and OPGW. The project also incorporated the demolition and reinforcement of existing 138kV structures.
The Newport News Federal Courthouse is a 35,000-square-foot, LEED® Silver certified facility. The interior structural, security and utility work included the construction of courtrooms, jury rooms, judges' chambers, office areas for administrative and security personnel, and a two-story lobby with sitting areas and restrooms.
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.
Olympus included the fabrication and integration of a 5,000-ton, 192 person-on-board (POB) living quarters for the Shell Olympus Topsides located in the Gulf of Mexico. The structure includes four levels plus an elevated helideck. This 50,000-square-foot facility sailed away in the summer of 2013 following integration.
The Solider Family Care Center is a three-story healthcare facility that is connected to an existing hospital via a two-level connector. The center provides spacious examination and treatment rooms for physical therapy, occupational therapy, orthopedics, podiatry, chiropractic, social work, family medicine, pediatrics and dental, as well as portions of radiology and pharmacy.
From 1993 to 2002, crews completed four contracts totaling more than $64 million for the DART Light Rail Starter System and the North Central and North Eastern Extensions. The main scope of work involved constructing the train control, central control and communication systems. Crews also installed and tested an automatic block signal system for more than 44 miles of double track. System elements included automatic highway crossing warnings, train stops, and train-to-wayside communications.
The University of Nebraska at Omaha Scott Court Complex provides rooms for 476 students in four, three-story apartment style residence halls. A typical unit includes a full kitchen, four bedrooms, two bathrooms and a common living area. Laundry facilities, common areas and an exercise room are included in each building.
A Kiewit-led joint venture constructed the Bay Bridge SAS E2/T1 project. The scope of work involved building the foundation of the self-anchored-suspension 530-foot-tall tower, known as the T1 footing, and constructing the eastern-most support structure, or E2, for the Skyway Segment. The three-part E2 structure is 220 feet long by 80 feet wide and the footing structure is 85 feet long, 73 feet wide and 21 feet thick.