I 20 over CITY ST * 1ST AVE SO


+33.54555, -86.74254
33°32'44" N, 86°44'33" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I 20 over CITY ST * 1ST AVE SO
Structure number:011060
Old structure number:00000I20370004A (from 1992 edition)
Location:I 20 * 1ST AVE SO
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:110.2 ft. [33.6 m]
Total length:237.9 ft. [72.5 m]
Roadway width between curbs:39.4 ft. [12.0 m]
Deck width edge-to-edge:40.7 ft. [12.4 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:34°
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:3
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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:91.1 tons [82.8 metric tons]
Inventory rating:54.6 tons [49.6 metric tons]
Sufficiency rating:86.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$2,499,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201686.0FairSatisfactoryFairGood-30680
July 201486.0FairSatisfactoryFairGood-30680
July 201286.0FairSatisfactoryFairGood-32780
July 201086.0FairSatisfactoryFairGood-31605
July 200886.0FairSatisfactoryFairGood-32130
August 200686.0FairSatisfactoryFairGood-31310
August 200486.0FairSatisfactoryFairGood-30790
August 200297.0FairSatisfactoryGoodGood-31140
August 200097.0FairSatisfactoryGoodGood-32125
August 199897.0FairSatisfactoryGoodGood-31265
August 199697.0GoodGoodGoodGood-30560
August 199497.0GoodGoodGoodGood-27540
September 199297.0GoodGoodVery GoodGood-27105
October 199097.0GoodGoodVery GoodVery Good-26490