I 20 over CTY STR


+33.53231, -86.71492
33°31'56" N, 86°42'54" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 20 over CTY STR
Structure number:011068
Location:I 20 * MONTEVALLO RD
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:104.0 ft. [31.7 m]
Total length:226.1 ft. [68.9 m]
Roadway width between curbs:51.8 ft. [15.8 m]
Deck width edge-to-edge:54.8 ft. [16.7 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1974
Year reconstructed:1989
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 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: July 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:27,875 [as of 2016]
Truck traffic:16% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:63.4 tons [57.6 metric tons]
Inventory rating:38.0 tons [34.5 metric tons]
Sufficiency rating:90.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,227,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201690.0FairSatisfactorySatisfactorySatisfactory-27875
July 201479.0FairGoodFairSatisfactory-27875
July 201276.0FairFairFairSatisfactory-24165
July 201087.0FairFairSatisfactoryGood-23415
July 200887.0FairFairSatisfactoryGood-23805
July 200687.0FairFairSatisfactoryGood-23155
August 200487.0FairFairSatisfactoryGood-22830
August 200287.0FairFairSatisfactoryGood-22885
August 200089.0FairSatisfactorySatisfactoryGood-32125
August 199890.0FairSatisfactoryGoodGood-31265
August 199690.0FairSatisfactoryGoodGood-30560
August 199489.0GoodGoodGoodGoodFO19030
September 199289.0GoodGoodVery GoodGoodFO22115

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,80801,6641440
Steel Protective Coatingsq. ft.17,38400017,384
Reinforced Concrete Decksq. ft.12,430012,43000
Reinforced Concrete Columneach87100
Reinforced Concrete Abutmentlinear ft.150757500
Reinforced Concrete Pier Caplinear ft.104104000
Pourable Jointlinear ft.110110000
Movable Bearingeach2408160
Fixed Bearingeach80800
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.452045200