This is a list of the National Register of Historic Places listings in Washington County, Pennsylvania.
The Charleroi-Monessen Bridge, officially the John K. Tener Memorial Bridge, is a two lane structure spanning the Monongahela River. The bridge connects North Charleroi in Washington County, Pennsylvania and Monessen in Westmoreland County, Pennsylvania. The structure connects Route 88 on the west bank of the river and Route 906 on the east side. The bridge, which opened in 2013, replaced a 1906 structure. The original bridge was closed in 2009 due to structural deficiency.
The Jackson's Mill Covered Bridge is a historic covered bridge in Hanover Township, Pennsylvania.
The Lyle Covered Bridge is a historic covered bridge in Raccoon, Pennsylvania.
The Longdon L. Miller Covered Bridge is a historic covered bridge in West Finley, Pennsylvania.
The Plant's Covered Bridge is a historic covered bridge in West Finley, Pennsylvania.
The Scott Brownlee Covered Bridge is a historic covered bridge in West Finley, Pennsylvania. It is designated as a historic bridge by the Washington County History & Landmarks Foundation.
The Wilson's Mill Covered Bridge is a historic covered bridge in Avella, Pennsylvania.
The Blaney Mays Covered Bridge is a historic covered bridge in West Alexander, Pennsylvania
The Pine Bank Covered Bridge is a historic covered bridge located at the Meadowcroft Museum of Rural Life in Studa, Pennsylvania. The bridge was built in 1871 and moved to its current location in 1962.
The Cerl Wright Covered Bridge is a historic covered bridge in Eighty Four, Pennsylvania.
The Leatherman Covered Bridge is a historic covered bridge in Scenery Hill, Pennsylvania.
The Krepps Covered Bridge is a historic covered bridge in Hickory, Pennsylvania.
The Henry Covered Bridge is a historic covered bridge in Monongahela, Pennsylvania
The Crawford Covered Bridge is a historic Queen post truss covered bridge in West Finley, Pennsylvania. The 11 feet 7 inches (3.53 m) by 39 feet (12 m) bridge has high sidewalls, a roof made of sheet metal, and crosswise planking. It is open to traffic across the Robinson Fork of Wheeling Creek.
The Danley Covered Bridge is a historic Queen post truss covered bridge in West Finley, Pennsylvania.
The Horn or Horn Davis or Overholtzer Bridge was a historic wooden covered bridge located in Morgan Township in Greene County and West Bethlehem Township in Washington County, Pennsylvania. It was a 96-foot-long (29 m), Burr Arch truss bridge constructed in 1889. It crossed Ten Mile Creek. As of October 1978, it was one of nine historic covered bridges in Greene County.
The Day Covered Bridge is a historic Queen post truss covered bridge in Morris Township, Washington County, Pennsylvania. It is 12' by 36'6" and rests on three stone and mortar abutments. It was renovated in 2003, in a project that added steel support beams, a new roof, flooring and sidewalls.
The Ebenezer Covered Bridge is a historic covered bridge in Eighty Four, Pennsylvania. The year the bridge was built is unknown. It was moved to its current location in 1977.
The Erskine Covered Bridge is a historic covered bridge in West Alexander, Pennsylvania.
