Boulder, Colorado

17th Street-Boulder Creek Bridge (Boulder County, Colorado)
Built ca. 1907; Replaced 1985
Lost Luten arch bridge over Boulder Creek on 17th Street
Replaced by new bridge

Broadway Bridge (Boulder County, Colorado)
Built 1922
Steel stringer bridge over Boulder Creek on Broadway
Open to traffic

First National Center Bridge (Boulder County, Colorado)
Pratt pony truss bridge over Wonderland Creek on a driveway
Open to traffic