Big Thompson River Bridge IV
Larimer County
Constructed in 1933, the steel rigid connected camelback pony truss extends for 100 feet across the Big Thompson River. Designed by the Colorado Department of Highways, fabricated by Midwest Steel & Iron Works, and built by Lawrence Construction Company, the 164-foot long bridge continues to provide an important transportation link along the route to Rocky Mountain National Park.
Big Thompson River Bridge IV (1999 photograph.)
The bridge is one of four located on the upper Big Thompson River, comprising the last surviving group of such trusses in the state. The property is associated with the Highway Bridges in Colorado Multiple Property Submission.