Polygonal Warren pony truss with no verticals

Bridge Street Canal Bridge (Hartford County, Connecticut)
Replaced an earlier swing bridge
Lost Pony Warren truss over Enfield Canal in Windsor Locks.
Replaced by a new bridge

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

Frew Mill Road Bridge (Old) (Lawrence County, Pennsylvania)
Built 1928
Pony truss bridge over Slippery Rock Creek on Frew Mill Road
Demolished and replaced.

Golden Trout Crossing Bridge (Lower) (Butte County, California)
Built 1950, rehabilitated 2000
Polygonal Warren pony truss bridge over South Fork Feather River on Old Golden Trout Crossing Road (FR 20N15)
Open to traffic

IHB - Grand Calumet River Bridge (Cook County, Illinois)
Built 1907
Polygonal Warren pony truss with no verticals bridge over Grand Calumet River on Indiana Harbor Belt 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 Branch Potomac River Bridge (Garrett County, Maryland)
Abandoned polygonal Warren pony truss with no verticals bridge over North Branch Potomac River on Abandoned Maryland 36
Derelict/abandoned

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 1980s
Pony truss bridge over San Antonio River on N. Presa Street in San Antonio
Open to traffic

Olean Creek Bridge (Cattaraugus County, New York)
Built 1997
Pony truss bridge over Olean Creek on Fay Hollow Road
Open to traffic

Ridgeway Street Bridge (Monroe County, Pennsylvania)
Built 1932
Pony truss bridge over Delaware-Lackawanna Railroad on PA 2024 in East Stroudsburg
Open to traffic; proposed for replacement