+41.62920, -83.93535
41°37'45" N, 83°56'07" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:TWP. ROAD 4 over AI CREEK
Structure number:2632411
Location:0.1 MI. N. OF ROAD L
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:21.7 ft. [6.6 m]
Total length:21.7 ft. [6.6 m]
Skew angle:45°
Owner:County Highway Agency [02]
Year built:1981
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: December 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:221 [as of 2015]
Truck traffic:22% of total traffic
Structural appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
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:97.0

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
December 2018Fair6 out of 1022197.0
November 2017Fair6 out of 1022197.0
December 2016Fair6 out of 1022197.0
October 2015Fair6 out of 10221100.0
October 2014Fair6 out of 10237100.0
November 2013Fair6 out of 10237100.0
September 2012Good7 out of 10237100.0
November 2011Good7 out of 10237100.0
November 2010Good7 out of 10237100.0
October 2009Good7 out of 10287100.0
October 2008Good7 out of 10287100.0
October 2007Good7 out of 10287100.0
October 2006Good7 out of 10287100.0
November 2004Good7 out of 10287100.0
October 2003Good7 out of 10287100.0
November 2002Good7 out of 10287100.0
November 2001Good7 out of 10287100.0
November 1999Good8 out of 10287100.0
November 1998Good8 out of 10100100.0
November 1997Good8 out of 10100100.0
November 1996Good8 out of 10100100.0
November 1995Good8 out of 10100100.0
December 1994Good8 out of 10100100.0
November 1993Good8 out of 10100100.0
November 1992Good8 out of 10100100.0
December 1991Good8 out of 10100100.0