Keywords: Hardy Bridge - looking SE from north approach - Cascade County Montana US - 2009.jpg en Looking southeast across the Hardy Bridge a Warren through-truss steel and concrete bridge in Cascade County Montana in the United States The two-lane bridge carries U S Route 91 over the Missouri River and the tracks of the BNSF Railway on the north embankment It was designed by the Montana Department of Highways and constructed in 1931 by the firm of Angus McGuire and Evarts Blakeslee of Great Falls Montana The bridge was added to the National Register of Historic Places on January 4 2010 http //cdm16013 contentdm oclc org/cdm/compoundobject/collection/p103401coll12/id/676/rec/52 Montana's Historic Steel Truss Bridges-Hardy Bridge NPS Form 10-900 rev 01/2009 National Register of Historic Places National Park Service U S Department of the Interior 2009 2009 1930s bridges in Montana Truss bridges in Montana Bridges on the National Register of Historic Places in Montana National Register of Historic Places in Cascade County Montana PD-USGov |