12 TH AVE NO over I 59/20


+33.53556, -86.79561
33°32'08" N, 86°47'44" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:12 TH AVE NO over I 59/20
Structure number:010494
Location:I 59 * 12 TH AVE NO
Purpose:Carries highway over highway
Route classification:Local (Urban) [19]
Length of largest span:141.1 ft. [43.0 m]
Total length:404.9 ft. [123.4 m]
Roadway width between curbs:49.9 ft. [15.2 m]
Deck width edge-to-edge:60.4 ft. [18.4 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1971
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 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: April 2014 

Status:Open, no restriction [A]
Average daily traffic:6,000 [as of 2002]
Truck traffic:1% 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:Superior to present desirable criteria [9]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:63.9 tons [58.1 metric tons]
Inventory rating:38.3 tons [34.8 metric tons]
Sufficiency rating:83.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$8,190,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201483.4Not deficientSatisfactoryFairGood6000
April 201283.4Not deficientSatisfactoryFairGood6000
April 201085.4Not deficientSatisfactoryFairSatisfactory6000
April 200885.4Not deficientSatisfactoryFairSatisfactory6000
April 200685.4Not deficientSatisfactoryFairSatisfactory6000
April 200485.4Not deficientSatisfactoryFairSatisfactory6000
April 200285.4Not deficientSatisfactoryFairSatisfactory6000
April 200085.4Not deficientSatisfactoryFairGood6000
March 199885.4Not deficientSatisfactoryFairGood6000
March 199685.4Not deficientSatisfactoryFairGood6000
March 199485.4Not deficientSatisfactoryFairGood6000
October 199195.7Not deficientGoodGoodGood10000