I0020 over ST. LOUIS & SW RR


+32.51110, -93.74093
32°30'40" N, 93°44'27" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I0020 over ST. LOUIS & SW RR
Structure number:040904510119331
Location:.2 MI EAST OF LA 1
Purpose:Carries highway overpass over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:129.9 ft. [39.6 m]
Total length:365.2 ft. [111.3 m]
Roadway width between curbs:79.4 ft. [24.2 m]
Deck width edge-to-edge:89.2 ft. [27.2 m]
Vertical clearance below bridge:54.8 ft. [16.7 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:3
Main spans material:Steel continuous [4]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:86,400 [as of 2015]
Truck traffic:29% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:21.8 tons [19.8 metric tons]
Inventory rating:16.7 tons [15.2 metric tons]
Sufficiency rating:27.8
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$3,057,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201727.8PoorFairPoorFairSD86400
September 201548.0PoorFairPoorFairSD86400
July 201448.0PoorFairPoorFairSD140400
August 201348.0PoorFairPoorFairSD134300
February 201348.0PoorFairPoorFairSD128300
March 201249.0PoorSatisfactoryPoorSatisfactorySD93200
February 201165.0FairSatisfactoryFairSatisfactory-104900
March 201065.0FairSatisfactoryFairSatisfactory-87400
January 200965.0FairSatisfactoryFairSatisfactory-84100
March 200865.0FairGoodFairGood-82500
February 200765.0FairGoodFairGood-81500
March 200665.0FairGoodFairGood-74000
February 200565.0FairGoodFairGood-70200
March 200465.0FairGoodFairGood-67800
February 200365.0FairGoodFairGood-60100
May 200165.0FairGoodFairGood-53497
April 200065.0FairGoodFairGood-53497
April 199965.0FairGoodFairGood-78172
March 199864.0FairFairFairGood-78172
April 199764.0FairFairFairGood-30515
June 199564.0FairFairFairGood-67792
June 199464.0FairFairFairGood-66268
April 199364.0FairFairFairGood-47582
March 199262.0PoorPoorFairGoodSD47582