ENR MidAtlantic’s 2017 Best Projects

Bunny Mellon Healing Garden Dedicated to the First Ladies of the United States
Washington, D.C.
Award of Merit

Owner: Children’s National Medical Center
Lead Design Firm: Perkins + Will
General Contractor: DAVIS Construction
Structural Engineer: Simpson Gumpertz & Heger
MEP Engineer: Leach Wallace Associates Inc.
Landscape Architect: Michael Vergason Landscape Architects Ltd.
Subcontractors: Hardesty Concrete Construction Inc.; Capital Welding Inc.; Power Solutions (Electrical); Dominion Mechanical Contractors Inc.

The project team renovated part of the roof area above the Children’s National Medical Center’s clinical laboratory in Washington, D.C., to create a healing garden where young patients can safely enjoy being outside. The scope included structural steel modifications to the existing roof structure to support the additional weight of a green roof system. The upgrades required more than 3,000 worker-hours of steel welding and 25 tons of steel materials. To minimize disruption for patients, staff and visitors, crews installed temporary exhaust fans, a welding smoke evacuation system and carbon filters over the adjacent air-handler intakes.

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courtesy of ENR MidAtlantic