Boundary Channel Bridge is unique among the other bridges erected along the Mount Vernon Memorial Highway. It consists of seven reinforced concrete cantilever girders and two exterior girders of structural steel cantilever trusses encased in concrete. The cantilevered arms extend forty-two feet with the free ends supporting a sixteen foot suspended span. This bridge, built in a style to blend into the surrounding landscape, takes on the natural shape of the arch and is faced with native stone. The bridge becomes part of the landscape even more, with the careful attention to the landforms and plantings surrounding the bridge.
-- Historic American Engineering Record
- Lost Ribbed closed-spandrel arch bridge over Boundary Channel on George Washington Memorial Parkway
- Washington, District of Columbia
- Replaced by new bridge
- Built 1932; rehabilitated 1993
- - Merritt-Chapman & Scott Corporation of New York, New York
- U.S. Bureau of Public Roads of Washington, D.C.
- Cantilevered Concrete Ribbed Deck Arch With Stone Facade
Length of largest span: 107.9 ft.
Total length: 244.1 ft.
Deck width: 47.9 ft.
- Also called
- Boundary Channel Bridge
- Approximate latitude, longitude
- +38.86806, -77.03556 (decimal degrees)
38°52'05" N, 77°02'08" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 18/323402/4304103 (zone/easting/northing)
- Quadrangle map:
- Inventory number
- BH 48577 (Bridgehunter.com ID)
- Inspection (as of 04/2009)
- Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 63.1 (out of 100)
- Average daily traffic (as of 2007)
- January 6, 2015: HAER photos posted by Dave King
- April 7, 2011: Added by Nathan Holth