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 

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. ratingEvaluationDeckSuper.Sub.ADT
July 201683.7Not deficientSatisfactoryFairGood30680
July 201483.7Not deficientSatisfactoryFairGood30680
July 201283.5Not deficientSatisfactoryFairGood32780
July 201083.6Not deficientSatisfactoryFairGood31605
July 200883.5Not deficientSatisfactoryFairGood32130
August 200683.6Not deficientSatisfactoryFairGood31310
August 200481.6Not deficientSatisfactoryFairGood30790
August 200293.0Not deficientSatisfactorySatisfactoryGood31140
August 200092.9Not deficientGoodGoodGood32125
September 199892.9Not deficientGoodVery GoodGood32265
August 199693.1Not deficientGoodVery GoodGood30560
August 199491.8Functionally obsoleteGoodGoodGood27540
September 199291.9Functionally obsoleteGoodVery GoodGood27105
October 199091.9Functionally obsoleteGoodGoodVery Good26490