Oklahoma State Capitol Dome - Oklahoma City, Oklahoma

When Manhattan completed the original Capitol Building in 1919, budget constraints and a shortage of building materials did not allow for a dome to be constructed. Nevertheless, the necessary foundations to support a dome were added at that time in hopes that one day a dome would be added. Construction of the 80-foot diameter by 140-foot high done began in April 2001 and was completed by Nov. 16, 2002, Statehood Day. The dome is steel super structure, architectural pre-cast concrete and architectural cast stone and the inner dome is reinforced with plaster casts. This project recieved the National Design-Build Award from the Design-Build Institute of America.

Walter Reed Army Institute of Research Phase II - Forest Glen, Maryland

This facility is home to the Walter Reed Army Institute of Research, and the Naval Medical Research Center. The 474,000 square foot facility provides research for infectious disease, combat casualty care, operational medicine, and chemical / biological defense. Included within the building are 130 laboratories (that range from Chemistry-Pharmacology to BL-3). Manhattan received recognition for "a job well done" from the Department of Army, Baltimore District Corps of Engineers' "Live Safety Program" and a final performance rating of “Outstanding.” The project received two ABC Excellence in Construction Awards and two Washington Building Congress Craftsmanship Awards.

Harris County Criminal Justice Center - Houston, Texas

Manhattan provided pre-construction and general contracting services for this project. The Harris County Criminal Justice Center is a 21-story, cast-in-place concrete structure, which includes 800,000 square feet. The scope of work included an additional 41 new courtrooms to the existing judicial system. Each courtroom floor has a central secure holding area for prisoner containment during trials.

1200 Baker Street Jail - Houston, Texas

Manhattan provided design-build services on the 1200 Baker Street Jail project which included 603,000 square feet of maximum-security jail space. The 4,156 bed, six-level jail includes 480 single-bed cells, 96 separation and super segregation cells, 1,632 multiple occupancy beds, 1,824 dormitory beds and 124 medical beds with a 176-space basement level employee parking area and 234 spaces of street-level parking.

Beltsville Human Nutrition Research Center - Beltsville, Maryland

This project consists of two new research laboratory buildings, for USDA for the Human Nutrition Research Center. Both Phases include two-story above-grade structures with a basement and attic. The structures consist of cast-in-place concrete frames on spread footings. The stone, pre-cast, masonry and standing seam "skin" is similar to the adjacent historical buildings on campus. Phase I is 47,000 square feet and include labs, examination rooms, research kitchen and a dinning area. Phase II is 45,000 square feet and includes labs and administration areas.

Defense Intelligence Analysis Center Addition at Bolling Air Force Base - Washington, District of Columbia

The Defense Intelligence Analysis Center (DIAC) Addition project includes a new 470,365 square foot multi-story, multi-purpose Sensitive Compartmented Information Facility (SCIF) administrative and operations building adjacent to the existing DIAC facility on Bolling Air Force Base in Washington, D.C. The project received a prestigious design award from the Washington, D.C. "Committee of 100." The committee was impressed with the unique integration of security features within the design, creating a beautiful yet well-protected facility. Additional recognition includes the Craftsmanship Award from the Washington Building Congress for the curtain wall.

Dawson County Sheriff's Office & Adult Detention Center - Dawsonvillle, Georgia

The 68,500 square foot Dawson County Sheriff's Office & Adult Detention Center facility is constructed of brick and concrete exterior wall systems, modular steel detention wall panels, non-load bearing masonry construction, structural steel interior columns and beams/joists, structural steel perimeter columns and roof framing. Additional components include security systems, security doors and glazing, hollow metal doors and frames, aluminum storefront systems and built-up asphalt roofing system.

NASA Exploration Sciences Building - Greenbelt, Maryland

The Exploration Sciences Building (ESB) project at the NASA Goddard Space Flight Center is a 200,000 square foot, three-story office and laboratory building with electronic, chemistry and computer labs. The structure is cast-in-place concrete frame covered with brick, glass and metal panels. This project is registered as a U.S. Green Building Council (USGBC) Leadership in Energy and Environmental Design (LEED®) project and is seeking LEED Silver certification.