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Pennsylvania Avenue Bridge, Spanning Rock Creek & Potomac Parkway, Washington, District of Columbia, DC
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Spanning Rock Creek & Potomac Parkway, Washington, DC
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Documentation compiled after 1968.
Survey number HAER DC-21
Unprocessed field note material exists for this structure (N130).
Building/structure dates: 1858 subsequent work
Building/structure dates: 1915 subsequent work
Significance: Cast-iron water mains from the Aqueduct Bridge by Montgomery Meigs, the span that preceded the present bridge, are encased in the concrete arch and are visible on the underside. These pipes were integral to the city's early water supply, and they continue to function as a link in the system that carries water from the reservoir in Georgetown to the city of Washington proper. The 1915-16 concrete arch span elicited a complaint from the Commission of Fine Arts about its design, and initiated a debate about the proper form of Rock Creek crossings.
Trails & Paths
Concrete Arch Bridges
D.C. Bridge Division
Meigs, Gen. Montgomery C.
Phoenix Iron Company
DC Bridge Division
Hardaway Construction Company
Army Corps Of Engineers
Boucher, Jack E., Photographer
Ross, Amy, Historian
Historic American Engineering Record (Library of Congress)
1. SOUTHWEST ELEVATION, LOOKING EAST
2. SOUTHWEST ELEVATION, LOOKING EAST
3. WEST END OF BRIDGE, LOOKING EAST
4. UNDERSIDE OF BRIDGE SHOWING 1858-60 WASHINGTON AQUEDUCT CAST-IRON WATER MAINS ENCLOSED IN 1915-1916 REINFORCED CONCRETE ARCH
5. NORTHEAST ELEVATION, LOOKING SOUTH
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