The Cambria Iron Company of Johnstown, Pennsylvania was a major 19th-century industrial producer of iron and steel. Founded in 1852, it had the nation's largest steel foundry in the 1870s, and was renamed the Cambria Steel Company in 1898. The company used many innovations in the steelmaking process, including those of William Kelly and Henry Bessemer. The company was acquired in 1923 by the Bethlehem Steel Company. The company's historic facilities, extending some 12 miles (19 km) along the Conemaugh and Little Conemaugh Rivers, are a National Historic Landmark District.
The Metal Highway Bridges of Fulton County Thematic Resources is the title for a Multiple Property Submission to the National Register of Historic Places in the U.S. state of Illinois. Originally the submission included nine separate bridges throughout Fulton County; however, since the Metal Highway Bridges' inclusion on the Register in 1980, more than half of those bridges have been destroyed.
The Western Bridge and Construction Company, located in Omaha, Nebraska, was one of the foremost bridge engineering and manufacturing companies in the Midwestern United States. Several of their bridges are now listed on the National Register of Historic Places. Their headquarters were located in the Bee Building in Downtown Omaha.
This is a list of the National Register of Historic Places listings in Antelope County, Nebraska.
Double-Span Metal Pratt Truss Bridge is a historic Pratt truss bridge over the Ausable River at Keeseville in Clinton County and Essex County, New York. It was built in 1877 by the Murray Dougal & Company of Milton, Pennsylvania. It is 214 feet in length and 16 feet wide. It consists of two 107 foot spans supported by a pier at mid-stream. It is the oldest extant example of a metal Pratt truss bridge in New York State.
The Hancock–Greenfield Bridge is a historic covered bridge carrying Forest Road over the Contoocook River at the town line between Hancock and Greenfield, New Hampshire. The New Hampshire Department of Transportation covered bridge database refers to it as County Bridge. Built in 1937, it is the first wooden covered bridge in the northeastern United States to use modern engineering techniques. The bridge was listed on the National Register of Historic Places in 1981.
The Southwest Fifth St. Bridge is an historic structure located in downtown Des Moines, Iowa, United States. Built in 1898 after a controversy surrounding the bidding process, it is one of the last Pratt through truss bridges left in an urban setting in Iowa. The bridge was listed on the National Register of Historic Places in 1998 as a part of the Highway Bridges of Iowa MPS.
The AJX Bridge is a historic Pratt truss bridge in southwestern Johnson County, Wyoming. The bridge was built in 1931 across the South Fork of the Powder River near Kaycee, Wyoming. AJX Bridge was built to provide a river crossing for U.S. Route 87. It was placed on the National Register of Historic Places in 1985 as part of a Multiple Property Submission devoted to historic bridges in Wyoming.
The Delhi Bridge, also known as the East Delhi Bridge, is a one-lane, wrought iron Pratt through truss bridge that carries East Delhi Road over the Huron River in Washtenaw County, Michigan. The bridge was completed October 12, 1883 to replace a wooden span built in 1851. In 1917, the bridge was severely damaged by a tornado but was rebuilt. After it was closed to traffic in 2005 for being unsafe, the bridge was renovated and reopened in 2009. The bridge is listed on the National Register of Historic Places.
The Capon Lake Whipple Truss Bridge, formerly known as South Branch Bridge or Romney Bridge, is a historic Whipple truss bridge in Capon Lake, West Virginia. It is located off Carpers Pike and crosses the Cacapon River. The bridge formerly carried Capon Springs Road over the river, connecting Capon Springs and Capon Lake.
The Neligh Mill is a water-powered flour mill in the city of Neligh in the northeastern part of the state of Nebraska in the Midwestern United States. The mill was built in 1873 by John Neligh, the city's founder, to make use of water power from the Elkhorn River. It operated for nearly one hundred years until it closed in 1969.
The bridge is significant locally as the only Pratt through-truss bridge remaining in Kosciusko County, and is important regionally as one of the few surviving spans built by the Bellefontaine Bridge and Iron Company.
The Boone River Bridge is a historic structure located north of Goldfield, Iowa, United States. It is a 6-panel, 128-foot (39 m) Warren Pony truss span over the Boone River.The construction began in 1910. The bridge was built in 1912 by the Iowa Bridge Company using steel fabricated at the Cambria steel mills in Johnstown, Pennsylvania. The Boone River Bridge is one of the few remaining multiple span pin-connected Pratt trusses in the state. It was listed on the National Register of Historic Places in 1998.
The Eisenhower Bridge is located east of Milton, Iowa, United States. It carries traffic on 252nd Street over the Fox River for 197 feet (60 m). The supervisors from Des Moines and Lee counties met on September 7, 1887, to view the location of a new bridge between the two counties over the Skunk River on the Burlington-Fort Madison Road. Financing delayed building the new bridge. They determined that Des Moines County would pay three-fifths of the costs and Lee County the remainder. Chicago engineer Horace B. Horton designed the Pratt truss, and it was built by the James B. Diver Bridge Company of Keokuk, Iowa. The Walker's Ferry Bridge was originally a two-span structure, and it was completed for $9,435. It was replaced with another bridge in 1930, and one of the spans was relocated to this location. Known locally as the Eisenhower Bridge, it replaced an 1895 span that was washed out in a flood. While it lost some of its historical integrity, it remains an example of early wagon bridge construction. It is also one of the few iron truss bridges remaining in Iowa, and it was designed by a prominent bridge engineer. The bridge was listed on the National Register of Historic Places in 1998.
The Powell Bridge is a National Register of Historic Places site that crosses Big Sugar Creek near the community of Powell, Missouri, a rural hamlet in McDonald County, Missouri in the Ozark Mountains region. The bridge was built by the East St. Louis Bridge Co. and was opened to traffic on August 16, 1915. The single-lane pin-connected Pratt through truss was open to vehicular traffic from 1915 until a new two-lane bridge was built and opened beside it in 2015. It is currently owned by the Powell Historic Preservation Society and is one of three sites in McDonald County on the National Register of Historic Places, which also includes the Old McDonald County Courthouse. The community of Powell itself is best known as the home of famed gospel writer Albert E. Brumley.
The Gould's Mill Bridge is a historic Baltimore through truss bridge, carrying Paddock Street across the Black River in Springfield, Vermont. The bridge was built by the Boston Bridge Works Company in 1929 after major flooding in 1927, and is one of the state's few examples of a Baltimore truss. It was listed on the National Register of Historic Places in 2006.
The Antelope County Courthouse, in Neligh in Antelope County, Nebraska, was built in 1894. It was listed on the National Register of Historic Places in 1980. As of 1980, it was one of the oldest courthouses still in use in Nebraska.
The New Hampton Pony Pratt Truss Bridge is a historic pony Pratt truss bridge on Shoddy Mill Road in New Hampton of Lebanon Township, Hunterdon County, New Jersey. It crosses the Musconetcong River between Lebanon Township, Hunterdon County and Washington Township, Warren County. It was designed by Francis C. Lowthorp and built in 1868 by William Cowin of Lambertville, New Jersey. The bridge was added to the National Register of Historic Places on July 26, 1977 for its significance in engineering, industry and transportation. It is one of the few early examples of iron Pratt truss bridges remaining in the United States. It was later documented by the Historic American Engineering Record in 1991. It was added as a contributing property to the New Hampton Historic District on April 6, 1998.
The Joliet Bridge, in Carbon County, Montana near Joliet, Montana, is a Pratt through truss bridge which was built in 1901. It was listed on the National Register of Historic Places in 1986.
The Glen Gardner Pony Pratt Truss Bridge is a historic pony Pratt truss bridge on School Street crossing the Spruce Run in Glen Gardner of Hunterdon County, New Jersey. It was designed by Francis C. Lowthorp and built in 1870 by William Cowin of Lambertville, New Jersey. The bridge was added to the National Register of Historic Places on September 22, 1977 for its significance in engineering, industry and transportation. It is one of the few early examples of iron Pratt truss bridges remaining in the United States. It was later documented by the Historic American Engineering Record in 1991.
