The Colorado Department of Highways is the antecedent of today's Colorado Department of Transportation. [1]
Along with many other functions, it served as a bridge architect and at times as a bridge builder. Many of its bridges are listed on the U.S. National Register of Historic Places. [2] [3]
Studies of Colorado's historic bridges, to assess which ones could qualify for National Register listing, were conducted in 1983, 1987, 2000, and 2011. The latter study evaluated "712 bridges and grade separations" which had been built during 1959 to 1968. [4]
Works (attribution) include:
The City of Loveland is the Home Rule Municipality that is the second most populous municipality in Larimer County, Colorado, United States. Loveland is situated 46 miles (74 km) north of the Colorado State Capitol in Denver and is the 14th most populous city in Colorado. As of the 2010 census the population of Loveland was 66,859, and in 2019 the population was estimated at 78,877. The city forms part of the Fort Collins-Loveland Metropolitan Statistical Area and the Front Range Urban Corridor. The city's public schools are part of the Thompson R2-J School District.
The Big Thompson River is a tributary of the South Platte River, approximately 78 miles (123 km) long, in the U.S. state of Colorado. It originates in Forest Canyon into Lake Estes, in Estes Park, CO. It includes four crossings/bridges which are listed on the U.S. National Register of Historic Places.
U.S. Route 34 (US 34) is an east–west United States highway that runs for 1,122 miles (1,806 km) from north-central Colorado to the western suburbs of Chicago. Through Rocky Mountain National Park it is known as the Trail Ridge Road where it reaches elevation 12,183 feet (3,713 m), making it the third highest paved through highway in the United States. The highway's western terminus is Granby, Colorado at US 40. Its eastern terminus is in Berwyn, Illinois at Illinois Route 43 and Historic US 66.
These historic properties and districts in the state of Texas are listed in the National Register of Historic Places. Properties and/or districts are listed in most of Texas's 254 counties.
The D&RG Narrow Gauge Trestle, also known as the Cimarron Canyon trestle, is a narrow-gauge railroad deck truss bridge crossing the Cimarron River near Cimarron, Colorado. Located within the Curecanti National Recreation Area, the trestle is the last remaining railroad bridge along the Denver & Rio Grande Railroad's Black Canyon route, a narrow-gauge passenger and freight line that traversed the famous Black Canyon of the Gunnison between 1882 and the 1940s.
U.S. Route 50 (US 50) is a part of the U.S. Highway System that travels from West Sacramento, California, to Ocean City, Maryland. In the U.S. state of Colorado, US 50 is a major highway crossing through the lower midsection of the state. It connects the Western Slope with the lower Front Range and the Arkansas Valley. The highway serves the areas of Pueblo and Grand Junction as well as many other smaller areas along its corridor. The long-term project to upgrade the highway from two lanes to a four lane expressway between Grand Junction and Montrose was completed in January 2005. Only about 25% of the remainder of highway 50 in Colorado is four lane expressway.
The Curecanti Needle is a 700-ft granite spire located on the Gunnison River in western Colorado. A notable landmark to generations of natives and pioneers, the Needle is located on the southern bank of Morrow Point Reservoir, an impoundment of the Gunnison river between Gunnison and Montrose, Colorado. Used for many years as an advertising symbol for the Denver and Rio Grande Western Railroad, whose narrow-gauge railway famously ran along the northern bank of the river and passed near the Needle, the spire is today part of the Curecanti National Recreation Area, a National Park Service facility that encompasses three impoundments of the Gunnison river, including Morrow Point Reservoir.
The Pueblo Bridge Co. is a firm that built a large number of bridges in the United States. Several are listed on the U.S. National Register of Historic Places.
The Missouri Valley Bridge & Iron Co., also known as Missouri Valley Bridge Company, was a engineering, construction, and steel fabrication firm that operated through the late nineteenth and most of the twentieth centuries. It was based in Leavenworth, Kansas, with a WWII facility in Evansville, Indiana.
Daniel B. Luten also known as Daniel Benjamin Luten was an American bridge builder and engineer based in Indianapolis, Indiana.
Four historic bridges on the Big Thompson River in Larimer County, Colorado survived its flood of 1976, but since have lost most of their historic integrity. They were built in 1933 and 1937. All four were listed on the National Register of Historic Places in 2002, and two were delisted in 2010.
Midwest Steel & Iron Works was a metal fabrication company based in Denver, Colorado. Founded in 1893, the company was known for a time as the Jackson-Richter Iron Works. The company was one of the "oldest and largest metal fabricators" in Denver. The company built both structural and ornamental components for structures throughout Colorado, Wyoming and New Mexico. The company's headquarters on Larimer Street in Denver includes an Art Deco office building and consists of a four-building complex that is itself considered a historic industrial site. The complex served as the company's headquarters from 1923 to 1983.
The Virginia Bridge & Iron Co., also known as Virginia Bridge Company, was a bridge company based in Roanoke, Virginia.
The Plum Bush Creek Bridge, near Last Chance, Colorado, is a concrete rigid frame bridge that is listed on the National Register of Historic Places. It brings US 36 across Plum Bush Creek and is located at milepost 138.16 of US 36. It was designed by Colorado Department of Highways and built by Peter Kiewit Sons Construction Co. in 1938. It was listed on the National Register of Historic Places (NRHP) in 2002.
The West Plum Bush Creek Bridge, near Last Chance, Colorado, is a historic concrete rigid frame bridge that is listed on the National Register of Historic Places. Like the similar Plum Bush Creek Bridge less than four miles away, it brings U.S. Highway 36 across the Plum Bush Creek. It was designed by the Colorado Department of Highways and built by Peter Kiewit Sons Construction Co. It was listed on the National Register of Historic Places in 2002.
Austin Bridge Company was a bridge company based in Dallas, Texas. It fabricated and built a number of bridges that are listed on the U.S. National Register of Historic Places.
Gunnison River Bridge I and Gunnison River Bridge II are two 129 feet (39 m) long bridges built during 1926–27. They were separately listed on the National Register of Historic Places in 2002.
The Granada Bridge, on U.S. Route 385 (US 385) at milepost 97.32 in or near Granada, Colorado. It was listed on the National Register of Historic Places in 2002.