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180TH STREET over MT. ZION BRANCH

Adams County, Iowa

Map

Coordinates:
+41.04327, -94.59692
41°02'36" N, 94°35'49" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:180TH STREET over MT. ZION BRANCH
Structure number:000000000059730
Location:072331301
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:39.0 ft. [11.9 m]
Total length:103.0 ft. [31.4 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:28.2 ft. [8.6 m]
Skew angle:20°
Owner:County Highway Agency [02]
Year built:1964
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: January 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:410 [as of 2016]
Truck traffic:10% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Better than present minimum criteria [7]
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:57.3
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2017FairFairFairSatisfactory41057.3
January 2015FairFairFairSatisfactory47057.3
February 2013FairFairFairSatisfactory47057.3
February 2011FairFairFairFair56056.1
March 2009FairFairFairFair56056.1
February 2007FairFairFairFair47057.3
January 2005FairFairFairFair47057.3
February 2003FairFairFairFair48054.3
April 2001GoodGoodVery GoodGood48065.3
May 1999GoodVery GoodVery GoodVery Good30069.0
October 1996GoodVery GoodVery GoodVery Good30069.0
October 1994GoodVery GoodVery GoodVery Good12073.3
November 1992GoodVery GoodVery GoodVery Good12073.5
November 1990GoodVery GoodVery GoodVery Good11073.5