The EFP Bridge spans Owl Creek in Hot Springs County, Wyoming. The bridge was erected in 1919–20 by the Monarch Engineering Company of Denver and spans 124 feet (38 m) with a total length of 126 feet (38 m). The rigid 7-panel Parker (camelback) through-truss was nominated for inclusion on the National Register of Historic Places as one of forty bridges throughout Wyoming that collectively illustrate steel truss construction, a technique of bridge design that has become obsolete since the mid-twentieth century. The bridge is supported on sandstone abutments and has a timber deck, 15 feet (4.6 m) in width.
The Calamus Creek Bridge near Maxwell, Iowa is a concrete Luten arch bridge constructed in 1905. It was built by N. M. Stark and Company for a cost of $900. It has a 25-foot (7.6 m) single span and a total length of 45 feet (14 m).
The Vine Street Bridge in West Union, Iowa brings South Vine St. over Otter Creek. It is a concrete Luten arch bridge built in 1910 by N.M. Stark & Co. It was listed on the National Register of Historic Places in 1998.
The Indian Creek Bridge is a wrought iron bridge, built about 1880 to the east of Cedar Rapids, Iowa. The bridge crosses a tributary of the Cedar River in Linn County. It was designed and built by the Wrought Iron Bridge Company (WIBCO) of Canton, Ohio as an eight-panel pin-connected through truss in an unusual double-intersection Pratt design.
Mill Creek Bridge is a historic structure located in a rural area north of Clarence, Iowa, United States.The Cedar Bluff Bridge over the Cedar River was the first all-iron span built in Cedar County in 1877. Four more iron spans were built later that year, as were several others over the years before this bridge was completed in 1889. It is the only one of those bridges left, and one of the oldest pony truss bridges in the state of Iowa. Citizens in Dayton Township petitioned the Cedar County Board of Supervisors in June 1888 for the bridge over Mill Creek. The supervisors contracted with Ward and Keepers of Clinton, Iowa to design and build the bridge. The 58-foot (1,800 cm) span was built on concrete-filled iron cylinder piers, with timber stringer approach spans. Over the years sub-structural alterations have been made to the bridge. It has subsequently been abandoned and its deck is in a deteriorating condition. The bridge was listed on the National Register of Historic Places in 1998.
County Line Bridge is a historic structure located in a rural area west of Columbus Junction, Iowa, United States. The Louisa County Board of Supervisors approved the petition of Thomas Anwyl in April 1893 to build a bridge over Long Creek on the Louisa-Washington county line. They awarded a $1,174 contract to the Gillette-Herzog Manufacturing Company of Minneapolis to build two bridges. The second span was the Gipple's Quarry Bridge over Buffington Creek in Elm Grove Township. The bridge span is supported by cast iron columns that were manufactured by the Cast Iron Pile and Bridge Company of Keosauqua, Iowa. The steel components were rolled by Carnegie, Gillette-Herzog in Pittsburgh. The pony truss bridge is typical of those built in the same era in Iowa, however, like Gipple's Quarry Bridge it has an unusual lower chord configuration with end panels that slope downward from the bearing shoes to the center panels. It has subsequently been abandoned. The bridge was listed on the National Register of Historic Places in 1998.
Hawkeye Creek Bridge is a historic structure located in a rural area northeast of Mediapolis, Iowa, United States. The Des Moines County Board of Supervisors contracted with Clinton Bridge and Iron Works on September 23, 1909, to design and build this bridge. It is an 80-foot (24 m) span that carries traffic of a gravel road over Hawkeye Creek. The structure is a single rigid-connected Pratt through truss that is supported by concrete abutments. It basically remains in an unaltered condition. The bridge was listed on the National Register of Historic Places in 1998.
The Mill Creek Bridge is located north of Cherokee, Iowa, United States. It spans Mill Creek for 207 feet (63 m). On June 24, 1891, a disastrous flood along the Little Sioux River and its tributaries wiped out nearly every bridge in Cherokee County. The following month the county board of supervisors signed a contract with the George E. King Bridge Co. of Des Moines for 17,650 to replace the bridges. This Pratt truss bridge was fabricated by the King Bridge Company of Cleveland, Ohio. It and a similar span over Mill Creek near Larrabee are the only two that remain. This bridge was listed on the National Register of Historic Places in 1998. A modern concrete span, built just upstream in 2006, now carries the road. The old bridge is closed to vehicular traffic.
The Storm Creek Bridge is located northeast of Carroll, Iowa, United States. The 64-foot (20 m) span carries traffic on Phoenix Avenue over Storm Creek. This bridge was one of 15 similar spans that Carroll County had built in 1913. The county board of supervisors contracted with the Standard Bridge Company of Omaha to build the Warren pony truss structures that were designed by the Iowa State Highway Commission (ISHC). They were supported by a timber substructure. The bridges became the prototype of what would become the ISHC's standard design. Standard Bridge was paid $29,174 to build all the bridges, which included the costs for this bridge at $2,026. It was listed on the National Register of Historic Places in 1998.
The Storm Creek Bridge 2 is located east of Carroll, Iowa, United States. The 57-foot (17 m) span carries traffic on 190th Street over Storm Creek. This bridge was one of 15 similar spans that Carroll County had built in 1913. The county board of supervisors contracted with the Standard Bridge Company of Omaha to build the Warren pony truss structures that were designed by the Iowa State Highway Commission (ISHC). They were supported by a timber substructure. The bridges became the prototype of what would become the ISHC's standard design. Standard Bridge was paid $29,174 to build all the bridges, which included the costs for this bridge at $1,987. It was listed on the National Register of Historic Places in 1998.
The Coal Creek Bridge was located southeast of Carlisle, Iowa, United States. The 88-foot (27 m) span carried traffic on Fillmore Street over Coal Creek. The Warren County Board of Supervisors contracted with the Seevers Manufacturing Company of Oskaloosa, Iowa to build this bridge. The Pratt pony truss was completed in 1889. It was the only example of this type of bridge built by the company left in Iowa. It was listed on the National Register of Historic Places in 1998, The bridge was taken down in 2008.
The Shellsburg Bridge is a historic structure located in Shellsburg, Iowa, United States. It spans Bear Creek for 64 feet (20 m). In April 1915 the Benton County Board of Supervisors contracted with Alfred Vinall to build the new bridge near Shellsburg's downtown area. He used a special design by the Iowa State Highway Commission (ISHC), and completed the project in late 1915 for $6,081.06. The ISHC designed plain bridges for its rural spans, but because this span is in town it features decorative elements: bichrome concrete detailing, molded concrete balustrades, and incised spandrel panels. The bridge was listed on the National Register of Historic Places in 1998.
Otter Creek Bridge is a historic structure located northwest of Oelwein, Iowa, United States. It spans Otter Creek for 86 feet (26 m). In July 1917, the Fayette County Board of Supervisors choose this bridge design for a concrete through girder bridge from the Iowa State Highway Commission, and put the project out to bid. When no one bid on the job they decided to use day laborers to build the bridge. It was completed later in 1917 for $5,153.88. The bridge was listed on the National Register of Historic Places in 1998.
Stoe Creek Bridge was a historic structure located northwest of Oelwein, Iowa, United States. It spanned Stoe Creek for 38 feet (12 m). In June and July 1913, the Fayette County Board of Supervisors awarded contracts for several small bridges in the county. The Iowa State Highway Commission designed this single span bridge that was built by N.M. Stark and Company of Des Moines. It was completed in 1914 for $1,654. The bridge was listed on the National Register of Historic Places in 1998. It was replaced in 2007.
Lower Road Bridge is a historic structure located northwest of Anamosa, Iowa, United States. It spans Buffalo Creek for 160 feet (49 m). The King Iron Bridge and Manufacturing Co. of Cleveland erected a bowstring through arch truss and a shorter pony arch in 1878 for what was historically called Lower Road. The bridge's superstructure consists of a large stone masonry pier and abutments. It was listed on the National Register of Historic Places in 1998. The county abandoned the bridge and it is now privately owned.
Moore's Ford Bridge was a historic structure located northeast of Monticello, Iowa, United States. It spanned White Water Creek for 100 feet (30 m). The Jones County Board of Supervisors received a petition for a bridge at this location in September 1877. While they agreed there was a need, they put off erecting a bridge here until other bridges in the county were completed at major crossings. They finally authorized this bridge in September 1883 and contracted with the Morse Bridge Company of Youngstown, Ohio to erect a single Pratt through truss span here. It was completed in June 1884 for $2,305. The bridge was listed on the National Register of Historic Places in 1998. It has subsequently been taken down.
The Dunkerton Bridge is a historic structure located in Dunkerton, Iowa, United States. The span carried a local street over Crane Creek for 212 feet (65 m). The three-span, filled spandrel arch bridge was built by the Marsh Engineering Company of Des Moines in 1909. It replaced an older span at a different location. The bridge served as the major entry point into the town from the north. This bridge was also replaced by a newer bridge to the east, and this span now carries pedestrian traffic between Charma Park and Marble Street into downtown Dunkerton. It was listed on the National Register of Historic Places in 1998.
The Dunleith and Dubuque Bridge, also known as the White Water Creek Bridge and the Bergfeld Recreation Area Bridge, is a historic structure located in Dubuque, Iowa, United States. This span was part of a seven-span approach to one of the first bridges constructed over the Mississippi River. It was part of a railroad bridge that connected Dubuque with Dunleith, Illinois, now known as East Dubuque. The bridge was fabricated by the Keystone Bridge Company of Pittsburgh, Pennsylvania. Andrew Carnegie himself traveled to Dubuque to advocate for his company to build the bridge. The bridge was erected by Reynolds, Saulpaugh and Company of Rock Island, Illinois. The approach, of which this iron truss was a part, was completed in 1872. It was used by the Illinois Central and other railroads.
East Indian Creek Bridge is a historic structure located southeast of Nevada, Iowa, United States. It spans East Indian Creek for 78 feet (24 m). N.M. Stark and Company of Des Moines started building bridges for Story County beginning in 1902, and then they held an exclusive contract until 1913 when the Iowa Legislature banned the practice. Stark constructed this concrete Luten arch structure in 1912 for $4,462 as part of a multi-bridge contract. This was the longest concrete arch built by Stark in Story County. It was listed on the National Register of Historic Places 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.
