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WALNUT ST over DES MOINES RIVER

Map

Coordinates:
+41.58724, -93.61828
41°35'14" N, 93°37'06" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:WALNUT ST over DES MOINES RIVER
Structure number:000000000003700
Location:078240400
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:75.1 ft. [22.9 m]
Total length:503.0 ft. [153.3 m]
Roadway width between curbs:67.9 ft. [20.7 m]
Deck width edge-to-edge:85.0 ft. [25.9 m]
Owner:City or Municipal Highway Agency [04]
Year built:1911
Year reconstructed:1966
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:M 18 / H 20 [4]
Number of main spans:6
Main spans material:Concrete continuous [2]
Main spans design:Arch - Deck [11]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:4,080 [as of 2016]
Deck condition:Poor [4 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:40.8
Recommended work:Other structural work, including hydraulic replacements. [38]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017PoorPoorPoorFair408040.8
July 2015PoorPoorPoorFair710037.7
June 2013PoorFairPoorFair710039.9
June 2011PoorFairPoorFair710039.9
June 2009PoorFairPoorFair710060.4
July 2007PoorFairPoorFair710060.6
July 2005FairFairFairFair710076.9
May 2003FairFairFairSatisfactory710082.2
March 2001FairFairSatisfactorySatisfactory710093.3
August 1999FairFairSatisfactorySatisfactory540093.7
October 1997FairFairGoodSatisfactory540093.7
March 1995GoodGoodGoodGood480094.6
April 1993GoodGoodGoodGood480094.6
March 1991GoodGoodGoodGood446094.7