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 Lincoln Highway Bridge is located in Tama, Iowa, United States, along the historic Lincoln Highway. The Steel stringer bridge was built in 1914, and it was listed on the National Register of Historic Places in 1978. It spans Mud Creek for 22 feet (6.7 m) with a width of 24 feet (7.3 m). The bridge is noteworthy for its distinctive railings. They are 3.33 feet (1.01 m) high, and feature the words "Lincoln Highway" in concrete. Local boosters of the Lincoln Highway paid for the railings as a way of promoting the roadway. The bridge was designed by the Iowa Highway Commission and built by Paul N. Kingsley, a contractor from Strawberry Point, Iowa.
The Court Avenue Bridge is an historic structure located in downtown Des Moines, Iowa, United States. It became a contributing property in the Civic Center Historic District in 1988, and was individually listed on the National Register of Historic Places on May 15, 1998 as a part of the Highway Bridges of Iowa MPS.
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 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 Jefferson Street Viaduct is an historic structure located in Ottumwa, Iowa, United States. The riveted Warren deck truss bridge was completed in 1936. It 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.
H. Gene McKeown & Assoc. is an architecture, engineering and construction services firm in Iowa, United States.
The Cascade Bridge is a historic structure located in Burlington, Iowa, United States. In April 1896 the Burlington City Council approved a proposal to have city engineer S.D. Eaton advertise for plans and estimates for a bridge on Main Street that would span Cascade Ravine. The Cascade Lumber Company had petitioned for the bridge. The city contracted with the Cedar Rapids, Iowa firm of Boynton & Warriner to design the structure and the Milwaukee Bridge and Iron Works to erect the span. The city was responsible for building the concrete substructure. The bridge was completed in the fall of 1896, and is composed of four spans. The span length is 160 feet (49 m), and its total length is 464 feet (141 m). The span is a Baltimore deck truss bridge with Pratt deck trusses at both ends. The structure is supported by stone and concrete abutments with concrete pedestals and a single concrete-filled steel cylinder pier. Over the years the original deck has been replaced, and concrete has been applied to the stone abutments. Otherwise the structure has been unaltered. The bridge was listed on the National Register of Historic Places in 1998.
The Wapsipinicon River Bridge is a historic structure located in Independence, Iowa, United States. It spans the Wapsipinicon River for 341 feet (104 m). The Buchanan County Board of Supervisors contracted with the Miller-Taylor Construction Company from Waterloo, Iowa, to build the new bridge on the south side of Independence for $37,680. However, high water created problems during construction, and the bridge was completed in January 1927 for $57,530. It replaced an earlier two-span iron truss bridge. This bridge is a concrete filled spandrel arch bridge with four spans. It was designed by the Iowa State Highway Commission, and continues to carry vehicle traffic. The bridge was listed on the National Register of Historic Places in 1998. There is a similar bridge upstream in Independence that was built in 1918.
Nodaway River Bridge is located west of Grant, Iowa, United States. It spans an arm of a small pond in Pilot Grove County Park for 70 feet (21 m). The Montgomery County Board of Supervisors accepted a petition from S. M. Smith to build a bridge over the Nodaway River south of Grant in June 1876, and another bridge over the Nishnabotna River at the same time. The county contracted with the Missouri Valley Bridge & Iron Co. of Leavenworth, Kansas, to design and build the Nodaway River bridge, which was completed later the same year for $1,000. The bridge consists of a single-span Bowstring arch-truss with a wood deck. It remained in use as a road bridge until 1968, when it was moved to the park for use as a pedestrian bridge. Even though it is no longer in its historic location and used for its historic function, the bridge was listed on the National Register of Historic Places in 1998 as an example of early transportation development in Iowa.
The Nishnabotna River Bridge is located northeast of Manilla, Iowa, United States. It carries traffic on T Avenue over the Nishnabotna River. Steel was in short supply during World War II as a part of the war effort. Many bridges built across the state were built in this era with timber, especially small-scale bridges. Heavy flooding washed out 27 bridges and culverts in Crawford County in May 1945. The county board of supervisors used emergency funds to build new bridges. They bought several steel superstructures from the Des Moines Steel Company to replace the wash-out spans. The bowstring arch-truss structures appear to have been designed by H. Gene McKeown, a civil engineer from Council Bluffs. This bridge is one several similar structures built in the county, and one of five that still remain. The bridge was listed on the National Register of Historic Places in 1998.
The Beaver Creek Bridge was located northwest of Schleswig, Iowa, United States. It spanned Beaver Creek for 134 feet (41 m). Steel was in short supply during World War II as a part of the war effort. Many bridges built across the state were built in this era with timber, especially small-scale bridges. Heavy flooding washed out 27 bridges and culverts in Crawford County in May 1945. The county board of supervisors used emergency funds to build new bridges. They bought several steel superstructures from the Des Moines Steel Company to replace the wash-out spans. The bowstring arch-truss structures appear to have been designed by H. Gene McKeown, a civil engineer from Council Bluffs. This bridge was one of several similar structures built in the county. The bridge was listed on the National Register of Historic Places in 1998, and it was delisted in 2020.
The East Soldier River Bridge was located southwest of Charter Oak, Iowa, United States. It carried traffic on 120th Street over the East Soldier River. Steel was in short supply during World War II as a part of the war effort. Many bridges built across the state were built in this era with timber, especially small-scale bridges. Heavy flooding washed out 27 bridges and culverts in Crawford County in May 1945. The county board of supervisors used emergency funds to build new bridges. They bought several steel superstructures from the Des Moines Steel Company to replace the wash-out spans. The bowstring arch-truss structures appear to have been designed by H. Gene McKeown, a civil engineer from Council Bluffs. This bridge is one of several similar structures built in the county. The bridge was listed on the National Register of Historic Places in 1998, and it was delisted in 2020.
Red Bridge is a historic structure located northeast of Postville, Iowa, United States. It spans the Yellow River for 128 feet (39 m). The Allamakee County Engineer designed the timber Pratt through truss structure, and it was erected by a local contractor named A. L. Powell in 1920. Built for $2,304.74, it is composed of timber compression members and forged iron tension members. The structural steel was provided by the Worden-Allen Company of Milwaukee, and City Lumber provided the timbers. At some point it was abandoned and the timber deck and stringers were removed. It is the last uncovered timber truss bridge remaining in Iowa. The bridge was listed on the National Register of Historic Places in 1998.
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.
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.
