I0020 over MARSHALL ST/LA 1/RRS.


+32.50827, -93.74511
32°30'30" N, 93°44'42" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I0020 over MARSHALL ST/LA 1/RRS.
Structure number:040904510118981
Location:I-20 OVER LA 1
Purpose:Carries highway overpass over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:127.0 ft. [38.7 m]
Total length:1821.9 ft. [555.3 m]
Roadway width between curbs:28.2 ft. [8.6 m]
Deck width edge-to-edge:36.1 ft. [11.0 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1965
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:17
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:57,720 [as of 2015]
Truck traffic:29% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:58.9 tons [53.5 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:48.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$7,105,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201748.0FairSatisfactoryFairSatisfactoryFO57720
February 201646.0FairSatisfactoryFairSatisfactoryFO57720
February 201546.0FairSatisfactoryFairSatisfactoryFO78120
February 201446.0FairSatisfactoryFairSatisfactoryFO75300
February 201346.0FairSatisfactoryFairSatisfactoryFO72480
February 201246.0FairSatisfactoryFairSatisfactoryFO62820
February 201146.0FairSatisfactoryFairSatisfactoryFO62820
March 201046.0FairSatisfactoryFairSatisfactoryFO61680
January 200946.0FairSatisfactoryFairSatisfactoryFO58440
February 200846.0FairGoodFairGoodFO56760
February 200746.0FairVery GoodFairGoodFO56460
March 200646.0FairVery GoodFairGoodFO55200
February 200546.0FairVery GoodFairGoodFO51900
March 200446.0FairVery GoodFairGoodFO48480
February 200345.7FairVery GoodFairGoodFO46560
May 200145.7FairVery GoodFairGoodFO48601
April 200045.7FairSatisfactoryFairGoodFO48601
April 199945.7FairSatisfactoryFairGoodFO48601
March 199845.7FairSatisfactoryFairGoodFO48601
January 199745.7FairSatisfactoryFairGoodFO18770
June 199546.0FairSatisfactoryFairGoodFO35182
June 199446.0FairSatisfactoryFairGoodFO30925
May 199345.0FairFairFairGoodFO23074
April 199345.0FairFairFairGoodFO29213
March 199248.0PoorPoorFairGoodSD29213