+41.66405, -91.33387
41°39'51" N, 91°20'02" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Structure number:000000000018530
Location:0.7 mi. E of Jct. SR X30
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:12.1 ft. [3.7 m]
Total length:38.1 ft. [11.6 m]
Skew angle:35°
Owner:State Highway Agency [01]
Year built:1960
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:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: October 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:37,400 [as of 2017]
Truck traffic:35% of total traffic
Structural appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Culvert condition:Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:78.7

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
October 2017Fair6 out of 103740078.7
October 2015Fair6 out of 103440079.1
October 2013Fair6 out of 103390083.0
October 2011Fair6 out of 103410083.0
October 2009Fair5 out of 103240072.0
November 2007Fair5 out of 103440072.0
November 2005Poor4 out of 103320056.0
November 2003Poor4 out of 103320056.0
January 2002Poor4 out of 103290056.0
May 2001Poor4 out of 103150056.0
August 2000Poor4 out of 103110056.0
February 1998Poor4 out of 103170056.0
March 1996Poor4 out of 102620056.0
November 1994Poor3 out of 102490039.0
January 1993Poor3 out of 102350039.0
August 1991Poor3 out of 102350039.0
September 1989Fair5 out of 102220072.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.69949320600