31 ST STR NO over I 59/20


+33.52856, -86.80436
33°31'43" N, 86°48'16" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:31 ST STR NO over I 59/20
Structure number:010493
Location:I59 * 31 ST STREET NO
Purpose:Carries highway overpass over highway
Route classification:Local (Urban) [19]
Length of largest span:103.0 ft. [31.4 m]
Total length:346.1 ft. [105.5 m]
Roadway width between curbs:67.9 ft. [20.7 m]
Deck width edge-to-edge:71.9 ft. [21.9 m]
Vertical clearance below bridge:15.4 ft. [4.7 m]
Skew angle:19°
Owner:State Highway Agency [01]
Year built:1971
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:4
Main spans material:Steel continuous [4]
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: April 2016

Good/Fair/Poor Condition:Fair
Status:Bridge closed to all traffic [K]
Average daily traffic:6,100 [as of 2002]
Truck traffic:2% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:10.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$6,221,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201610.3FairSatisfactoryFairSatisfactorySD6100
April 201484.3FairSatisfactoryFairSatisfactory-6100
April 201368.1PoorSatisfactoryPoorSatisfactorySD6100
April 201269.1PoorSatisfactoryPoorSatisfactorySD6100
April 201169.1PoorSatisfactoryPoorSatisfactorySD6100
April 201069.1PoorSatisfactoryPoorSatisfactorySD6100
April 200869.1PoorSatisfactoryPoorSatisfactorySD6100
April 200669.1PoorSatisfactoryPoorGoodSD6100
April 200470.1PoorSatisfactoryPoorGoodSD6100
April 200286.3FairSatisfactoryFairGood-6100
April 200084.3FairSatisfactoryFairGood-6100
May 199883.3FairFairFairGood-6050
March 199684.3FairGoodFairGood-6050
March 199483.5FairGoodFairGood-6000
October 199194.5FairSatisfactorySatisfactoryGood-6000