The designers chose Grade 70 steel to provide extra strength where it was needed between the arches while maintaining a consistent structure depth.
Project Team
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Owner: District of Columbia Department of Transportation, Washington
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General contractor/erector: South Capitol Bridgebuilders (SCB), joint venture of Archer Western and Granite Construction, Washington
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Structural engineer: AECOM, Glen Allen, Va.
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Lead bridge architect: BEAM Architects, Bridgport, U.K.
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Erection and construction engineer: McNary, Bergeron & Johannesen, Hartford, Conn.
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General engineering consultant: HNTB, Arlington, Va.
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Steel team:
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Fabricator: Veritas Steel LLC, Eau Claire, Wis. *AISC full member; AISC-Certified fabricator*
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Detailer: Tensor Engineering, Indian Harbour Beach, Fla. *AISC associate member*
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