Scenic Bridge
The Scenic Bridge crossing Clark Fork River about four miles east of Tarkio in Mineral County, Montana, was built in 1928. It is located at Milepost 0 on Old U.S. Route 10 W. It has also been denoted 24MN304 and MDT No. L31012000+08. It was listed on the National Register of Historic Places in 2010.
It is a riveted Pratt deck truss bridge constructed in 1928. It has three main spans upon reinforced concrete abutments and piers. It is long in total, with four approach spans, two deck truss spans, and a deck truss main span. The bridge is wide, supporting a roadway.
This Pratt deck truss design is visually pleasing and rare. It was chosen by state staff for relatively rare circumstances during 1928 to 1932, after which a version of a Warren truss design was used.