The Eagle Point Bridge was a very narrow two-lane automobile bridge that connected urban Dubuque, Iowa, and rural Grant County, Wisconsin. It was part of the US 61/US 151 route, and was a toll bridge. After the new Dubuque–Wisconsin Bridge was built in 1983, the Eagle Point Bridge was torn down. At the end, the toll was ten cents, both ways, collected on the Iowa side.
The Rock Island Centennial Bridge, officially the Master Sargeant Stanley W. Talbot Memorial Bridge, connects Rock Island, Illinois, and Davenport, Iowa. The bridge is 3,850 feet (1,173 m) long and stands 170 feet (52 m) above water level.
The Fort Madison Toll Bridge is a tolled, double-decked swinging truss bridge over the Mississippi River that connects Fort Madison, Iowa, and unincorporated Niota, Illinois. A double-track railway occupies the lower deck of the bridge, while two lanes of road traffic are carried on the upper deck. The bridge is about 1 mile (1.6 km) long with a swing span of 525 feet (160 m), and was the longest and largest double-deck swing-span bridge in the world when constructed in 1927. It replaced an inadequate combination roadway/single-track bridge completed in 1887. The main river crossing consists of four 270-foot (82 m) Baltimore through truss spans and a swing span made of two equal arms, 266 feet (81 m) long. In 1999, it was listed in the National Register of Historic Places under the title, Fort Madison Bridge, ID number 99001035. It was also documented as survey number IA-62 by the Historic American Engineering Record, archived at the Library of Congress. Construction and photographic details were recorded at the time in Scientific American magazine.
Cutler–Donahoe Bridge is a 79-foot-long (24 m) covered bridge in Madison County, Iowa. It was built in 1870 by Eli Cox. It originally crossed the North River near Bevington, Iowa. In 1979, the bridge was moved to its location at the entrance to the Winterset City Park.
The Imes Bridge is a wooden covered bridge in Madison County, Iowa. Built in 1870, it was originally located over the Middle River. In 1887 it was moved to a spot over Clinton Creek, and in 1977 was moved again to its present site. It is 81 feet (25 m) long and is the oldest of the remaining covered bridges in Madison County. It was renovated in 1997 for a cost of $31,807.
The Sutliff Bridge is a bridge over the Cedar River at Sutliff, a Johnson County community near Lisbon, Iowa, United States. A Parker truss bridge, it was built in 1897 and 1898 at a cost of approximately $12,000. J. R. Sheely was the engineer for the original Sutliff Bridge. After a modern replacement was built over the Cedar in 1983, the bridge was slated for destruction, but it was ultimately saved, and on May 15, 1998, it was added to the National Register of Historic Places.
The Bridgeport Bridge is a historic structure located near Denmark, Iowa, United States. This span was a replacement bridge for structure whose middle stone pier was deteriorating. The weaknesses in the old bridge were noted in 1887 and 1893. Both Des Moines and Lee counties financed the $5,110 construction of this bridge, which spans the Skunk River between the two counties. The 240-foot-long (73 m) Pennsylvania truss bridge was built in 1904 by the Clinton Bridge and Iron Works of Clinton, Iowa. It carried local traffic for nearly 90 years before it was closed. It has the distinction of being the longest pin-connected truss remaining in Iowa. The Bridgeport Bridge was listed on the National Register of Historic Places in 1998.
The Roseman Covered Bridge is a historic covered bridge in Winterset, Iowa. It is prominently featured in the novel The Bridges of Madison County, as well as its film adaptation. It was built in 1883 over the Middle River, and renovated in 1992. The Roseman Covered Bridge was added to the National Register of Historic Places in 1976.
The Hogback Covered Bridge is a historic covered bridge near Winterset, Iowa. Named after a nearby limestone ridge, it was built in 1884 by Harvey P. Jones and George K. Foster over the North River on Douglas Township Road. The 106-foot-long (32 m) bridge was designed with a Town lattice truss system. It was built with steel pylons to support the main span.
The Pine Mill Bridge is an historic structure located in Wildcat Den State Park in rural Muscatine County, Iowa, United States. It was built in 1878 near the Pine Creek Gristmill, the only place in Iowa where a mill and bridge combination remains in place. The bridge was listed on the National Register of Historic Places in 1998 as a part of the Highway Bridges of Iowa MPS.
The Alden Bridge is a historic bridge in Alden, Iowa, which carries the town's Main Street over the Iowa River, United States. The concrete bridge is 150 feet (46 m) long and consists of two spans. It was built in 1936 to replace an earlier wooden bridge that had begun to deteriorate. The Weldon Brothers Construction Company supervised the bridge's construction, while the Iowa State Highway Commission designed the structure; it was one of the first bridges designed by the ISHC, which used similar plans for many other bridges in the state. Labor for the construction effort came from the Works Progress Administration, providing jobs for many of Hardin County's unemployed residents. The bridge was dedicated on July 4, 1936, as part of Alden's Independence Day celebrations.
Eveland Bridge is located southwest of Oskaloosa, Iowa, United States. It carried traffic of Fulton Avenue over the Des Moines River, spanning 647 feet (197 m). After receiving multiple petitions, the Mahaska County Board of Supervisors decided in April 1875 to build a bridge, replacing a ferry service that operated at this point along the river beginning in 1854. They contracted with the Fort Wayne Bridge Works of Fort Wayne, Indiana, to build the new bridge for $25,200. It was designed by C. W. Tracy, a civil engineer. The Whipple through truss span was completed in the summer of 1877. This style was rarely chosen for wagon trusses in Iowa, which means few were built and fewer remain standing. Its deck has subsequently deteriorated and the bridge has been closed to traffic. The Eveland Bridge was listed on the National Register of Historic Places in 1998.
The Mederville Bridge is a historic structure located in the unincorporated community of Mederville, Iowa, United States. It spans the Volga River for 156 feet (48 m). This is one of only a few open spandrel arch bridges constructed in Iowa. Designed by the Marsh Engineering Company of Des Moines, it replaced a covered timber Howe truss bridge. Clayton County rejected all of the original bids to build the structure when they all came in too high. Six companies bid a second time on the project, and F. E. Marsh and Company of Des Moines won. They completed in the bridge in 1918 for $17,454.32. It was listed on the National Register of Historic Places in 1998. On October 2, 2021, it was the site where Kelsey Bergan and Mark Schutte got married.
The Elkader Keystone Bridge is a historic structure located in Elkader, Iowa, United States. The old iron truss bridge that crossed the Turkey River at this location was declared unsafe in 1888. The Clayton County Board of Supervisors decided to construct a bridge of native limestone as way of saving money and providing a reliable crossing. Engineer M. Tschirgi designed the structure and Dubuque stonemasons Byrne and Blade constructed the bridge. It was built at a cost of $16,282, and spans the river for 346 feet (105 m). This is one of the largest twin arched keystone bridges west of the Mississippi River. A sidewalk was added on the north side of the structure in 1924. The bridge was individually listed on the National Register of Historic Places in 1976.
The Twin Bridge is a historic structure located in Twin Bridge Park southwest of Fayette, Iowa, United States. It spans the Little Volga River for 80 feet (24 m). The Fayette County Board of Supervisors contracted with N. M. Stark and Company of Des Moines to build almost all of its bridges between 1900 and 1913. This concrete Luten arch bridge was completed in about 1910 using a patented design by Indianapolis engineer Daniel Luten. Stark was a licensee for Luten and they built multiple bridges using his designs under a patent royalty agreement. The Twin Bridge was listed on the National Register of Historic Places in 1998.
Mill Race Bridge is a historic structure located northwest of Eldorado, Iowa, United States. It spans the Turkey River for 120 feet (37 m). Its name is derived from its location near a riverside mill. Horace E. Horton, a civil engineer from Minneapolis, had designed wagon bridges for Fayette County in the 1880s. When he joined the Chicago Bridge & Iron Company late in the decade, he took the county with him as a client. Chicago Bridge & Iron was responsible for providing the county's bridges in the 1890s. This bridge was completed about 1892, but its concrete abutments are not original. While it remains in place, but it has been replaced by a newer span. The Mill Race Bridge was listed on the National Register of Historic Places in 1998.
West Auburn Bridge is a historic structure located northwest of West Union, Iowa, United States. It spans the Turkey River for 181 feet (55 m). In 1880 the Fayette County Board of Supervisors contracted with Minneapolis engineer Horace E. Horton to design and build this bridge. The Whipple through truss bridge was completed for $7,598.79. At the time of its nomination it was one of only eight bridges of this design known to exist in Iowa. The West Auburn Bridge was listed on the National Register of Historic Places in 1998.
Hale Bridge is a historic structure located south of Anamosa, Iowa, United States. It spans the Wapsipinicon River for 296 feet (90 m). It is an example of a bowstring through-arch truss bridge. Perhaps thousands of these bridges were built in Iowa in the late 1860s through the 1870s. However, by 1992, fewer than twenty survive.
The Winnebago River Bridge was a historic structure located north of Mason City, Iowa, United States. The span carried U.S. Route 65 over the Winnebago River for 122 feet (37 m). This is the second span at this location. The stone abutments from the previous bridge were utilized in this one. They were sheathed in concrete by the Concrete Engineering Company, and William Henkel of Mason City constructed the bridge. It is composed of three concrete spans with a 70 feet (21 m) center span cantilevered from shorter anchor spans. It was listed on the National Register of Historic Places in 1998. A second span has subsequently been built to the east in 1969.
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.
