I 20 over CNIC RR


+32.27517, -90.20522
32°16'31" N, 90°12'19" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I 20 over CNIC RR
Structure number:11000200250452B
Location:0.2 MI E I 55
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:69.9 ft. [21.3 m]
Total length:313.0 ft. [95.4 m]
Roadway width between curbs:63.0 ft. [19.2 m]
Deck width edge-to-edge:65.9 ft. [20.1 m]
Vertical clearance below bridge:22.3 ft. [6.8 m]
Skew angle:41°
Owner:State Highway Agency [01]
Year built:1966
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:5
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2014 

Status:Open, no restriction [A]
Average daily traffic:55,000 [as of 2012]
Truck traffic:13% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:66.7 tons [60.6 metric tons]
Inventory rating:59.2 tons [53.8 metric tons]
Sufficiency rating:88.2

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201488.2Not deficientGoodVery GoodVery Good55000
August 201288.2Not deficientGoodVery GoodVery Good55000
July 201087.6Not deficientGoodVery GoodVery Good67000
June 200885.9Not deficientGoodVery GoodVery Good62500
June 200689.3Not deficientGoodVery GoodVery Good54500
October 200489.1Not deficientGoodVery GoodVery Good57500
August 200289.0Not deficientGoodVery GoodVery Good60000
September 200087.1Not deficientGoodVery GoodVery Good48500
September 199887.1Not deficientGoodVery GoodVery Good48500
March 199787.1Not deficientGoodVery GoodVery Good48500
February 199588.7Not deficientGoodVery GoodVery Good40300
April 199189.0Not deficientGoodVery GoodVery Good36640