+41.97676, -91.67271
41°58'36" N, 91°40'22" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IA 922-1ST AVE over CEDAR RIVER
Structure number:000000000033490
Location:0.2 MI.N.OF I-380
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:112.9 ft. [34.4 m]
Total length:696.9 ft. [212.4 m]
Roadway width between curbs:80.1 ft. [24.4 m]
Deck width edge-to-edge:98.1 ft. [29.9 m]
Owner:State Highway Agency [01]
Year built:1920
Year reconstructed:1964
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:MS 18 / HS 20 [5]
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:Low slump Concrete [4]

Latest Available Inspection: October 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:13,400 [as of 2018]
Truck traffic:3% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:95.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2018FairSatisfactorySatisfactorySatisfactory1340095.7
October 2016FairSatisfactoryFairFair1420084.5
October 2014FairSatisfactoryFairFair1410084.5
October 2012FairSatisfactoryFairFair1570084.3
October 2010FairSatisfactoryFairFair1580084.3
September 2008FairSatisfactoryFairFair1510084.4
November 2006FairSatisfactoryFairFair1610084.3
February 2005FairSatisfactoryFairFair1460084.4
November 2002FairSatisfactoryFairFair1470084.4
November 2000FairSatisfactoryFairFair1470084.4
October 1998FairSatisfactoryFairFair1680083.1
September 1996FairSatisfactoryFairFair1640083.1
September 1994FairSatisfactoryFairFair1650082.6
July 1992FairFairFairFair2050081.2
October 1990FairFairFairFair1980081.3

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Decksq. ft.68,30664,3693,883540
Wearing Surfacessq. ft.44,60841,1083,50000
Reinforced Concrete Archlinear ft.3,0672,850205120
Prestressed Concrete Floor Beamlinear ft.2,1842,184000
Reinforced Concrete Floor Beamlinear ft.4,3684,21814820
Reinforced Concrete Pier Walllinear ft.42234661150
Reinforced Concrete Abutmentlinear ft.1821384400
Reinforced Concrete Pier Caplinear ft.42631311300
Strip Seal Jointlinear ft.784078400
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,3941,394000