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

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.2,25902,1571020
Steel Protective Coatingsq. ft.23,71300023,713
Reinforced Concrete Decksq. ft.14,3070014,3070
Reinforced Concrete Columneach1201200
Reinforced Concrete Abutmentlinear ft.143140300
Reinforced Concrete Pier Caplinear ft.1760160160
Compression Jointlinear ft.28200141141
Movable Bearingeach3700370
Fixed Bearingeach2101470
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.502050200