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FM 170TH AVE over WILLOW CREEK

Clay County, Iowa

Map

Coordinates:
+43.00084, -95.25028
43°00'03" N, 95°15'01" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:FM 170TH AVE over WILLOW CREEK
Structure number:000000000116360
Location:095373202
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:67.9 ft. [20.7 m]
Total length:67.9 ft. [20.7 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:29.9 ft. [9.1 m]
Owner:County Highway Agency [02]
Year built:1963
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:280 [as of 2015]
Truck traffic:28% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:88.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2017FairFairFairFair28088.0
March 2015FairFairFairFair23083.8
March 2013FairFairFairFair23083.8
March 2011FairFairFairFair23083.8
March 2009FairSatisfactorySatisfactoryFair19084.5
March 2007FairSatisfactorySatisfactoryFair19084.9
November 2004FairSatisfactoryGoodSatisfactory22095.9
December 2002FairSatisfactoryGoodSatisfactory22095.9
April 2001FairSatisfactoryGoodSatisfactory25095.9
November 1998FairGoodGoodSatisfactory16095.9
November 1996FairGoodGoodSatisfactory16095.9
October 1994FairGoodGoodSatisfactory16094.9
October 1992FairGoodGoodSatisfactory16095.9
November 1990GoodGoodGoodGood16095.9