+42.36516, -83.13336
42°21'55" N, 83°08'00" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:UNDERWOOD AVE over I-96
Structure number:000000000011580
Old structure number:82182123000S320 (from 1992 edition)
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Local (Urban) [19]
Length of largest span:86.9 ft. [26.5 m]
Total length:174.2 ft. [53.1 m]
Roadway width between curbs:29.5 ft. [9.0 m]
Deck width edge-to-edge:42.0 ft. [12.8 m]
Vertical clearance below bridge:14.4 ft. [4.4 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1972
Year reconstructed:2009
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:2
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:1,700 [as of 2008]
Truck traffic:1% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:88.6 tons [80.5 metric tons]
Inventory rating:53.1 tons [48.3 metric tons]
Sufficiency rating:89.7

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201689.7GoodGoodGoodGood-1700
September 201489.7GoodGoodGoodGood-1700
September 201289.7GoodGoodGoodGood-1700
September 201086.7FairSatisfactoryGoodGood-1700
October 200983.7PoorPoorGoodSatisfactory-1700
February 200972.4PoorPoorGoodSatisfactorySD3300
October 200775.4FairSatisfactoryGoodSatisfactoryFO3300
October 200575.4FairSatisfactoryGoodSatisfactoryFO3300
October 200377.4FairSatisfactoryGoodSatisfactory-3300
October 200177.4FairSatisfactoryGoodSatisfactory-3300
October 199975.4FairSatisfactoryGoodSatisfactoryFO3300
September 199767.3FairGoodVery GoodFairFO3300
June 199578.3GoodGoodVery GoodGoodFO3300
October 199378.4GoodGoodVery GoodGoodFO3000
April 199151.0PoorGoodPoorSatisfactorySD3000