Spencerville Covered Bridge, Covered bridge in DeKalb County, US.

The Spencerville Covered Bridge is a 146-foot (45 m) Smith Type 4 truss bridge on concrete piers over the St. Joseph River. It has a gable roof and board-and-batten siding. It is one of only six remaining Smith trusses in Indiana.

The bridge was constructed in 1873 using a Smith Type 4 truss design, representing significant engineering practices of the 19th century. Its construction method was typical for the era and demonstrates how structures of this type were built during that period.

The bridge is one of only six remaining Smith truss bridges in Indiana, a type patented by Robert W. Smith and built here in 1873. It was listed on the National Register of Historic Places in 1981, and in 2021 it was named a top repair priority in President Biden's proposed American Jobs Plan.

The bridge carries a rural road across the St. Joseph River at Spencerville, in DeKalb County, Indiana. It stands on concrete piers and is reached from the surrounding county roads; the one-lane deck is shared with vehicles, so visitors on foot should step aside for traffic.

It is one of only six Smith truss bridges left in Indiana. In 2021 it was named a top-priority rural bridge for repair in President Biden's proposed American Jobs Plan, which required approval by Congress, including votes from Representative Jim Banks and Senators Todd Young and Mike Braun.