US 51 over CNIC RR


+32.27735, -90.18624
32°16'38" N, 90°11'10" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US 51 over CNIC RR
Structure number:210005102509510
Location:JCT I 20
Purpose:Carries highway over railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:60.0 ft. [18.3 m]
Total length:299.9 ft. [91.4 m]
Roadway width between curbs:60.0 ft. [18.3 m]
Deck width edge-to-edge:70.9 ft. [21.6 m]
Vertical clearance below bridge:21.7 ft. [6.6 m]
Skew angle:41°
Owner:State Highway Agency [01]
Year built:1956
Year reconstructed:1969
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: July 2014 

Status:Open, no restriction [A]
Average daily traffic:4,500 [as of 2012]
Truck traffic:8% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:67.9 tons [61.7 metric tons]
Inventory rating:40.7 tons [37.0 metric tons]
Sufficiency rating:90.5

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201490.5Not deficientGoodGoodGood4500
July 201289.7Not deficientGoodGoodGood12500
July 201087.7Not deficientFairGoodGood12500
May 200888.7Not deficientGoodGoodGood12500
June 200691.8Not deficientGoodGoodGood12000
August 200491.8Not deficientGoodGoodGood12000
August 200291.8Not deficientGoodGoodGood12000
August 200091.8Not deficientGoodGoodGood11300
August 199891.8Not deficientGoodGoodGood11300
October 199691.2Not deficientGoodGoodGood10280
December 199491.7Not deficientGoodGoodGood10280
February 199391.8Not deficientGoodGoodGood9340
March 199191.9Not deficientGoodGoodGood8490