Design-Build

Center for Advanced Research in Biotechnology, University of Maryland

A three-story addition to the biotechnology research center delivered via design-build approach.  The center includes biomedical research labs, lab support, scientific computing, and faculty office space for biotechnology research.  The project also includes a free-standing nuclear magnetic resonance (NMR) facility. 

1111 18th Street, NW

Located in the "Golden Triangle" business district in the center of Washington, DC, this six-story above-grade office building with two below-grade parking levels, houses the headquarters of a high-security federal government tenant.

Designed to meet GSA's blast design requirements, the structure is also designed to accommodate three to five additional floors in the future.  The building is easily accessible to multiple Metro stations as well as restaurants, hotels and shopping.

HHS at Parklawn, 5600 Fishers Lane

Renovation of the Department of Health and Human Services’ (HHS) Parklawn Building to upgrade the facility into a Class “A”, LEED Platinum-certified office building with industrial loft aesthetics and innovative green features.  

Structural modifications included a 12-story vertical expansion to create a new atrium space.  The new atrium feature consists of a new floor at the main building level, along with new elevator and stair cores situated at the atrium corners, serving each level above the atrium floor.  The atrium is enclosed by a new steel-framed roof with 100-foot spans supporting a 100x100-foot ETFE skylight system.  Four existing elevator cores were demolished, removing off-grid columns that required new slabs as well as column jackets at the affected column bays.

Additional modifications included floor penetrations at existing slabs for new elevator and mechanical shafts, in-fill of existing abandoned shafts, FRP retrofits for the new facade and two-story lobby, and blast hardening at columns and slabs. 

Dunbar Senior High School

Replacing an outdated 1970’s facility, the new Dunbar High School is designed to provide a sense of clarity and purpose that honors the school’s original traditions.  The two-story open hall, known as the “Armory,” is located in the heart of the school, as originally built in 1917.

Accommodating 1,100 students, the new facility includes a four-story academic wing with flexible learning spaces for four different “academies,” a two-story library and administrative area, and a two-story athletic wing housing the gymnasium auditorium above the natatorium.  The LEED for Schools Platinum certified project includes over 300 geothermal wells, a 500,000 kW solar panel array, two 20,000 gallon cisterns for reusing rainwater, enhanced acoustics, and low VOC materials.  The project was developed under the DC Department of General Services’ (DC DGS) modified design-build program on a fast-track schedule.

Ballou Senior High School

A new 310,000 sf replacement high school designed to provide a state-of-the-art learning facility with flexibility for the ever-changing demands of the education environment.  Located in Southeast DC, the project includes: gymnasiums and fitness center; a natatorium; a collegiate-level, theater-style auditorium; a light-filled library/multimedia center; and a three-story, off-hill classroom wing.

The components are tied together with a “Main Street” concept and wrap to form an interior courtyard.  The project was developed under the DC DGS modified design-build program on a fast-track schedule and is slated for LEED Gold Certification.

Anacostia Naval Air Station, Honor Guard Bachelor Quarters

A four-story military dormitory with drill and dining halls (utilizing architectural exposed steel), and a mechanical building.  The drill hall also included a gymnasium and incorporated bowstring trusses spanning 85 feet.

The floors for the entire project were composed of normal weight concrete over form deck on metal form over steel joist, supported on steel beams.  The roofs are purlins or trusses.  All of the foundations systems are structural slab-on-grade on pile foundations, as the project is along the Anacostia River.