I20 over US 11 1ST AVE NO


+33.54639, -86.74477
33°32'47" N, 86°44'41" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I20 over US 11 1ST AVE NO
Structure number:011057
Old structure number:00000I20370002A (from 1992 edition)
Location:I20 * US 11
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:95.5 ft. [29.1 m]
Total length:251.0 ft. [76.5 m]
Roadway width between curbs:55.4 ft. [16.9 m]
Deck width edge-to-edge:57.1 ft. [17.4 m]
Vertical clearance below bridge:17.7 ft. [5.4 m]
Skew angle:20°
Owner:State Highway Agency [01]
Year built:1974
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 [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: July 2016 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:30,680 [as of 2016]
Truck traffic:14% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:81.8 tons [74.4 metric tons]
Inventory rating:49.0 tons [44.5 metric tons]
Sufficiency rating:83.7
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,727,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201683.7FairSatisfactoryFairGood-30680
July 201483.7FairSatisfactoryFairGood-30680
July 201283.5FairSatisfactoryFairGood-32780
July 201083.6FairSatisfactoryFairGood-31605
July 200883.5FairSatisfactoryFairGood-32130
August 200683.6FairSatisfactoryFairGood-31310
August 200481.6FairSatisfactoryFairGood-30790
August 200293.0FairSatisfactorySatisfactoryGood-31140
August 200092.9GoodGoodGoodGood-32125
September 199892.9GoodGoodVery GoodGood-32265
August 199693.1GoodGoodVery GoodGood-30560
August 199491.8GoodGoodGoodGoodFO27540
September 199291.9GoodGoodVery GoodGoodFO27105
October 199091.9GoodGoodGoodVery GoodFO26490