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 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:4,600 [as of 2014]
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. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201690.5GoodGoodGoodGood-4600
July 201490.5GoodGoodGoodGood-4500
July 201289.7GoodGoodGoodGood-12500
July 201087.7FairFairGoodGood-12500
May 200888.7GoodGoodGoodGood-12500
June 200691.8GoodGoodGoodGood-12000
August 200491.8GoodGoodGoodGood-12000
August 200291.8GoodGoodGoodGood-12000
August 200091.8GoodGoodGoodGood-11300
August 199891.8GoodGoodGoodGood-11300
October 199691.2GoodGoodGoodGood-10280
December 199491.7GoodGoodGoodGood-10280
February 199391.8GoodGoodGoodGood-9340
March 199191.9GoodGoodGoodGood-8490