Herrold Bridge
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The Herrold Bridge is a historic structure located near the
unincorporated community An unincorporated area is a region that is not governed by a local municipal corporation. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. Most other countries of the world either have ...
of
Herrold, Iowa Herrold is an unincorporated community in Polk County, Iowa, United States. Herrold is located in Jefferson Township. The state capital and county seat of Des Moines Des Moines () is the capital and the most populous city in the U.S. state ...
, United States. It carried a gravel road for over Beaver Creek. with Completed in 1921, this concrete cantilevered deck girder bridge replaced an earlier timber pile structure. It was designed by the
Iowa State Highway Commission The Iowa Department of Transportation (Iowa DOT) is the government organization in the U.S. state of Iowa responsible for the organization, construction, and maintenance of the primary highway system. Located in Ames, Iowa, DOT is also responsi ...
the previous year, and the
Polk County Polk County is the name of twelve counties in the United States, all except two named after president of the United States James Knox Polk: * Polk County, Arkansas * Polk County, Florida * Polk County, Georgia * Polk County, Iowa * Polk Count ...
Board of Supervisors awarded the construction contract to Ben Cole of
Ames Ames may refer to: Places United States * Ames, Arkansas, a place in Arkansas * Ames, Colorado * Ames, Illinois * Ames, Indiana * Ames, Iowa, the most populous city bearing this name * Ames, Kansas * Ames, Nebraska * Ames, New York * Ames, Ok ...
. The total cost of construction was $24,283.36. The bridge features three arched concrete deck girder spans that are cantilevered from concrete
abutment An abutment is the substructure at the ends of a bridge span or dam supporting its superstructure. Single-span bridges have abutments at each end which provide vertical and lateral support for the span, as well as acting as retaining walls ...
s and piers. It is considered one of the most technologically significant of
Iowa Iowa () is a state in the Midwestern region of the United States, bordered by the Mississippi River to the east and the Missouri River and Big Sioux River to the west. It is bordered by six states: Wisconsin to the northeast, Illinois to the ...
's concrete girder bridges. The bridge was listed on the
National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...
in 1998. While it remains in place, the Herrold Bridge was replaced by a newer span slightly downstream.


See also

* * * * *
List of bridges on the National Register of Historic Places in Iowa This is a list of bridges and tunnels on the National Register of Historic Places in the U.S. state of Iowa. References

{{NRHP bridges Bridges on the National Register of Historic Places in Iowa, Lists of bridges on the National Regis ...
*
National Register of Historic Places listings in Linn County, Iowa This is a list of the National Register of Historic Places listings in Linn County, Iowa. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Linn County, Iowa, United States. L ...


References

Bridges completed in 1921 Bridges in Polk County, Iowa National Register of Historic Places in Polk County, Iowa Road bridges on the National Register of Historic Places in Iowa Concrete bridges in the United States Girder bridges in the United States {{Iowa-bridge-struct-stub