US 51 over CNIC RR


+32.27554, -90.20536
32°16'32" N, 90°12'19" 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:19.7 ft. [6.0 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]
Sufficiency rating:90.5

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2016GoodGoodGoodGood460090.5
July 2014GoodGoodGoodGood450090.5
July 2012GoodGoodGoodGood1250089.7
July 2010FairFairGoodGood1250087.7
May 2008GoodGoodGoodGood1250088.7
June 2006GoodGoodGoodGood1200091.8
August 2004GoodGoodGoodGood1200091.8
August 2002GoodGoodGoodGood1200091.8
August 2000GoodGoodGoodGood1130091.8
August 1998GoodGoodGoodGood1130091.8
October 1996GoodGoodGoodGood1028091.2
December 1994GoodGoodGoodGood1028091.7
February 1993GoodGoodGoodGood934091.8
March 1991GoodGoodGoodGood849091.9

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.3,59903,59900
Steel Protective Coatingsq. ft.17,0920016,708384
Reinforced Concrete Decksq. ft.21,251021,25100
Reinforced Concrete Abutmentlinear ft.180180000
Steel Pileeach9609600
Steel Protective Coatingsq. ft.5,06092404,1360
Reinforced Concrete Pier Caplinear ft.546546000
Compression Jointlinear ft.360360000
Open Jointlinear ft.6060000
Movable Bearingeach168016800
Steel Protective Coatingsq. ft.168000168
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.600600000