Maple Creek Bridge (Washington County, Pennsylvania)
Built 1912Concrete arch bridge over Maple Creek on PA 88 in CharleroiOpen to traffic
Mill Street Bridge (Washington County, Pennsylvania)
Built 1908 by American Bridge Co.Pony truss bridge over Norfolk Southern on Mill Street (Old PA 88) in Fredericktown-MillsboroClosed to all traffic
Muddy Creek Bridge (Greene County, Pennsylvania)
Built 1921Concrete arch bridge over Muddy Creek on PA 88 in FairdaleOpen to traffic
Point Marion Bridge (Greene County, Pennsylvania)
Built 1930; rehabilitated 1976Cantilevered through truss bridge over the Monongahela River on PA Route 88 in Point MarionOpen to traffic
Tenmile Creek PA 88 Bridge (Greene County, Pennsylvania)
Built 1933; rehabilitated 1982Through truss bridge over Tenmile Creek on PA 88 in CentervilleOpen to traffic