First Avenue Bridge

First Avenue Bridge
U.S. National Register of Historic Places
41°58′38.2″N 91°40′17.6″W / 41.977278°N 91.671556°W / 41.977278; -91.671556
Built	1920
Built by	Koss Construction Co.
Architect	Marsh Engineering Company
MPS	Highway Bridges of Iowa MPS
NRHP reference No.	98000530[1]
Added to NRHP	May 15, 1998

The First Avenue Bridge is a historic structure located in downtown Cedar Rapids, Iowa, United States. It carries U.S. Route 151 for 697 feet (212 m) over the Cedar River.^[2] The original six-span concrete arch structure was completed in 1920 for $420,000. It was designed by Marsh Engineering Company and built by Koss Construction Co., both of Des Moines. Consulting engineer Ned L. Ashton of Iowa City designed the 1960s remodel. He had all of the concrete work above the original arches torn out and the bridge rebuilt as an open-spandrel structure. The rebuild also included a wider deck to accommodate increased traffic and aluminum railings. While the bridge's original structural integrity has been compromised, this is the first notable concrete spandrel arch reconstruction in Iowa and possibly in the country.^[2] The bridge was listed on the National Register of Historic Places in 1998.^[1]

See also

• Transport portal
• Engineering portal
• Iowa portal
• National Register of Historic Places portal
• List of bridges on the National Register of Historic Places in Iowa
• National Register of Historic Places listings in Linn County, Iowa

References

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