The King Iron Bridge & Manufacturing Company was a late-19th-century bridge building company located in Cleveland, Ohio. It was founded by Zenas King (1818–1892) in 1858 and subsequently managed by his sons, James A. King and Harry W. King and then his grandson, Norman C. King, until the mid-1920s. Many of the bridges built by the company were used during America's expansion west in the late 19th century and early 20th century, and some of these bridges are still standing today.
Additional bridges designed and/or built by the company (and many likely to be surviving) are:
Hendricks Ford Bridge (1880) Edinburg, Indiana
The Wisconsin Bridge and Iron Company (WB&I) was a fabricator and erector of iron and steel bridges and other large structures.
The County Line Bowstring is a bridge located near unincorporated Hollis, Kansas, United States, that is listed on the National Register of Historic Places. It spans West Creek on the border between Cloud and Republic counties and has a wooden deck with a bowstring pony truss.
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.
The Burlington, Cedar Rapids and Northern Railway (BCR&N) was a railroad that operated in the United States from 1876 to 1903. It was formed to take over the operations of the bankrupt Burlington, Cedar Rapids and Minnesota Railway, which was, in turn, the result of merging several predecessor lines, the construction of which began in 1869. The corporate headquarters were in Cedar Rapids, Iowa, and it had operations in Iowa and in Minnesota. It was succeeded by the Chicago, Rock Island and Pacific Railway.
The Berlin Iron Bridge Company was a Berlin, Connecticut company that built iron bridges and buildings that were supported by iron. It is credited as the architect of numerous bridges and buildings now listed on the U.S. National Register of Historic Places. It eventually became part of the American Bridge Company.
Canton Bridge Company was a firm that was later incorporated into the American Bridge Company. The firm was established in Canton, Ohio, in 1892 and became one of the nation's biggest bridge-builders during the early 20th century. It designed and/or built many bridges that later became listed on the U.S. National Register of Historic Places (NRHP).
The Quarry Bridge is located near Quarry, Iowa in Marshall County, Iowa. The bridge is also called the Iowa River Bridge. It was built in 1885 and has been listed on the National Register of Historic Places since 1998.
The Iowa Bridge Company was a company that designed and built many bridges that are listed on the U.S. National Register of Historic Places.
The Vincennes Bridge Company, based in Vincennes, Indiana, was a designer and builder of bridges that was "one of Indiana's 'most successful bridge-building firms'".
The Skunk River Bridge is a Warren truss bridge that crosses Skunk River near Ames, Iowa in Story County, Iowa. It was built in 1876, and was added to the National Register of Historic Places in 1998.
Clinton Bridge and Iron Works was a significant company in Clinton, Iowa.
N. M. Stark and Company, of Des Moines, Iowa, was a firm active in building bridges in Iowa.
The Champion Bridge Company, formerly known as Champion Iron Bridge and Manufacturing Company, is a steel fabrication business based in Wilmington, Ohio, in the United States. It has been in business since the 1870s, and several of its works are listed on the National Register of Historic Places.
The Osage Creek Bridge is a historic bridge in southern Benton County, Arkansas. The bridge formerly carried County Road 71 across Osage Creek, about 4.5 miles (7.2 km) north of Tontitown, but it has been closed. It is a single-span iron Pratt through truss structure, with a span of 124 feet (38 m), resting on concrete abutments. It has a lattice guardrail on one side, a feature that rarely survives on bridges of this type. The bridge was built in 1911 by an unknown builder, and is one of about 60 Pratt truss bridges in the state.
The Iron Bridge at Howard Hill Road is a modern pony truss bridge, carrying Howard Hill Road across the Black River in southeastern Cavendish, Vermont. It is the replacement for a historic 1890 Pratt through truss bridge, which is now in storage. The historic bridge was listed on the National Register of Historic Places in 1982.
Monsrud Bridge is a historic structure originally located northwest of Waterville, Iowa, United States. It spanned Paint Creek for 43 feet (13 m). The King Iron Bridge Company of Cleveland fabricated and erected the Bowstring pony arch structure in 1887. It was listed on the National Register of Historic Places (NRHP) in 1998.
The Fish Creek Bridge is a historic structure that was originally located east of Salem, Iowa, United States. The span carried Hickory Road over Fish Creek for 50 feet (15 m). It is a small-scale, wrought-iron bridge that the Henry County Board of Supervisors bought from the George E. King Bridge Company of Des Moines in 1893 for $410.80. It was believed to have been fabricated by their parent company, King Iron Bridge Company of Cleveland, and assembled by local laborers. Its historical significance derived from its being an uncommon variant of the Pratt truss. It was listed on the National Register of Historic Places in 1998. Subsequently, the bridge has been replaced at its original location, and the historic structure was moved to Oakland Mills Park.
The Oakland Mills Bridge is a historic structure located in Oakland Mills Park southwest of Mount Pleasant, Iowa, United States. The span carried Hickory Road over the Skunk River for 358 feet (109 m). In July 1876 the Henry County Board of Supervisors decided to locate the bridge over the Skunk River at Oakland Mills. After engineers looked over the proposals, they choose the Missouri Valley Bridge and Iron Company of Leavenworth, Kansas to build the structure. The long-span combination Pratt truss through and pony truss was completed later the same year. The steel components where manufactured by the Phoenix Iron Company of Pennsylvania. It is one of the oldest Pratt through truss bridges in Iowa. Long closed to vehicular traffic, it was listed on the National Register of Historic Places in 1998.
South Dakota Department of Transportation Bridge No. 63-210-282 was a historic bridge in rural Turner County, South Dakota, carrying 461st Avenue across the East Fork Vermillion River southwest of Centerville. Built in 1909, it was a well-preserved example of bridges built for the county by the Iowa Bridge Company. It was listed on the National Register of Historic Places in 1999. The bridge's original Pratt through main span was replaced by a steel girder span in 2009–10.
The Bentonsport Bridge is located on the Des Moines River connecting Bentonsport to Vernon, Iowa, and is on the National Register of Historic Places. It is located in the Bentonsport National Historic District.
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