Washington, Pennsylvania

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Allegheny Ludlum Bridge (Washington County, Pennsylvania)
Pony/through plate girder bridge over Chartiers Creek on Private Road (Pennsylvania Railroad)
Open to traffic

Allison Avenue Overpass (Washington County, Pennsylvania)
Built 1960
Concrete rigid frame bridge over I-70 Eastbound Exit 17 Ramps (SR 8014) on Allison Avenue
Open to traffic above and below

AVR - W Chestnut St Overpass (Washington County, Pennsylvania)
Pony/through plate girder bridge over W. Chestnut ST (US40) on Allegheny Vallry Railroad
Open

AVR - West Maiden Street Overpass (Washington County, Pennsylvania)
Warren through truss with all verticals bridge over Maiden Street on Railroad
Open to traffic

Caldwell Avenue Bridge (Washington County, Pennsylvania)
Built 1939; replaced 2014
Lost Steel stringer bridge over Chartiers Creek on Caldwell Avenue
Replaced by a new bridge

Henderson Avenue Canon Industrial Line Overpass (Washington County, Pennsylvania)
Built 1925
Lost Concrete pony/through girder bridge over Pennsylvania Railroad Canon Industrial Line (abandoned) on PA 18
No longer exists

PRR - Chartiers Creek Bridge #1 (Washington County, Pennsylvania)
Abandoned bridge over Chairter's Creek on Pennsylvania Railroad
Derelict/abandoned

PRR - Chartiers Creek Bridge #3 (Washington County, Pennsylvania)
Abandoned bridge over small creek on Pennsylvania Railroad
Derelict/abandoned

PRR - Chartiers Creek Bridge #4 (Washington County, Pennsylvania)
Abandoned bridge over small creek on Pennsylvania Railroad
Derelict/abandoned

W Maiden St Bridge (Washington County, Pennsylvania)
Bridge over W Maiden St on Baltimore & Ohio Railroad
Open to traffic