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Klondike Bridge

Summary

The Klondike Bridge is located southwest of Larchwood, Iowa, United States. The 260-foot (79 m) span carried traffic on 180th Street over the Big Sioux River.[2] The bridge was first constructed at this point in 1901, but it proved inadequate to handle the traffic that followed, so in 1913 Lyon County hired the Western Bridge and Omaha Construction Company to create the Klondike.[3] The Iowa Legislature passed the Brockway Act that required counties to use Iowa State Highway Commission (ISHC) standards for bridge construction rather than the counties acting on their own in 1913. The ISHC spent the next year standardizing plans. It is in this transition period that the Lyon County Board of Supervisors decided to replace an outdated 1901 span at this location. They contracted with the Western Bridge and Construction Company of Omaha, Nebraska to build this bridge. They used a Pratt through truss of their own design for the main span. It was flanked by two Warren pony trusses from the ISHC. In 1914, the structure was completed for $11,586.11. The historical nature of this bridge is derived from its construction in the transition period, and its use of standard and non-standard bridge designs.[2] It was listed on the National Register of Historic Places in 1998.[1] The span has subsequently been abandoned.[4]

Klondike Bridge
Klondike Bridge is located in Iowa
Klondike Bridge
Klondike Bridge is located in the United States
Klondike Bridge
Location180th St. over the Big Sioux River
Nearest cityLarchwood, Iowa
Coordinates43°23′09″N 96°31′18″W / 43.38583°N 96.52167°W / 43.38583; -96.52167
Arealess than one acre
Built1914
Built byWestern Bridge and Construction Company
ArchitectIowa State Highway Commission
Architectural stylePratt through truss
Warren pony truss
MPSHighway Bridges of Iowa MPS
NRHP reference No.98000510[1]
Added to NRHPMay 15, 1998

References edit

  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  2. ^ a b Clayton B. Fraser. "Klondike Bridge". National Park Service. Retrieved 2016-06-03. with one photo from 1992
  3. ^ "Ghosts of North America". Sep 1, 2014. Retrieved Sep 1, 2014.
  4. ^ "Klondike bridge". Iowa Department of Transportation. Retrieved 2016-06-03.