Polygonal Warren pony truss with no verticals

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Abandoned MD 36 Bridge (Garrett County, Maryland)
Abandoned polygonal Warren pony truss with no verticals bridge over North Branch Potomac River on Abandoned Maryland 36
Derelict/abandoned

Conrail Railroad Bridge (Monroe County, Pennsylvania)
Built 1932
Pony truss bridge over Conrail Railroad on PA 2024 in East Stroudsburg
Open to traffic

Erie Canal Bridge (Saratoga County, New York)
Built 1907; rehabilitated 2004
Pony truss bridge over Erie Canal on NY 32 in Waterford
Open to traffic

IBH - Grand Calumet River Bridge (Cook County, Illinois)
Built 1907
Polygonal Warren pony truss with no verticals bridge over Grand Calumet River on Indiana Belt Harbor RR
Replaced by a new bridge

Ischua Creek Bridge (Cattaraugus County, New York)
Built 1997
Pony truss bridge over Ischua Creek on Coal Chutes Road
Open to traffic

Linfield Bridge (Chester County, Pennsylvania)
Built 1932; rehabilitated 1970
Pony truss bridge over Schuylkill River on Linfield Rd. (Main St.)
Open to traffic

North Presa Street Bridge (Bexar County, Texas)
Built 1925 by the McKenzie Construction Co. and the Houston Structural Steel Co.; reduced to two lane traffic in the 1980's
Pony truss bridge over San Antonio River on N. Presa Street in San Antonio
Open to traffic

Parker Street Bridge (Monroe County, New York)
Pony truss bridge over Erie Canal on Parker Street in Fairport
Open to traffic