Trusal Covered Bridge is a historic wooden covered bridge in Washington Township, Indiana County, Pennsylvania. Built in 1870, it carries a footpath across Plum Creek and represents the region’s 19th-century bridge building tradition on a small scale. The 35-foot bridge uses a Town truss, a lattice-style design widely adopted for timber spans. Its importance also rests on its rarity, as it is one of only four covered bridges still remaining in Indiana County. Its historical value was formally recognized when it was listed on the National Register of Historic Places in 1979.