+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 2014 

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. ratingEvaluationDeckSuper.Sub.ADT
September 201489.7Not deficientGoodGoodGood1700
September 201289.7Not deficientGoodGoodGood1700
September 201086.7Not deficientSatisfactoryGoodGood1700
October 200983.7Not deficientPoorGoodSatisfactory1700
February 200972.4Structurally deficientPoorGoodSatisfactory3300
October 200775.4Functionally obsoleteSatisfactoryGoodSatisfactory3300
October 200575.4Functionally obsoleteSatisfactoryGoodSatisfactory3300
October 200377.4Not deficientSatisfactoryGoodSatisfactory3300
October 200177.4Not deficientSatisfactoryGoodSatisfactory3300
October 199975.4Functionally obsoleteSatisfactoryGoodSatisfactory3300
September 199767.3Functionally obsoleteGoodVery GoodFair3300
June 199578.3Functionally obsoleteGoodVery GoodGood3300
October 199378.4Functionally obsoleteGoodVery GoodGood3000
April 199151.0Structurally deficientGoodPoorSatisfactory3000