Walnut Street Bridge was built originally in 1893. After falling into a state of disrepair in the late 20th century, it was rebuilt in 1990. In 2012, the bridge was adjusted again to become a 3-lane bridge with 12-feet-wide (3.7m) foot paths, and a bike lane.
The original 1893 bridge was a 60-foot-wide (18 m) concrete structure with three steel Pratt trusses mounted on four heavy oblong concrete abutments and piers. It was demolished in 1988, but its piers were used for the 62-foot (19 m)-wide 1991 span.
