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IS 55 S over MISSISSIPPI RVR, CST WHA

Map

Coordinates:
+38.61888, -90.18547
38°37'08" N, 90°11'08" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IS 55 S over MISSISSIPPI RVR, CST WHA
Structure number:1244
Location:S 23 T 45 N R 7 E
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:600.1 ft. [182.9 m]
Total length:2165.1 ft. [659.9 m]
Roadway width between curbs:117.5 ft. [35.8 m]
Deck width edge-to-edge:122.1 ft. [37.2 m]
Vertical clearance below bridge:54.8 ft. [16.7 m]
Owner:State Highway Agency [01]
Year built:1963
Year reconstructed:2016
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:5
Main spans material:Steel continuous [4]
Main spans design:Box Beam or girders - Single or Spread [06]
Deck type:Steel plate (includes orthotropic) [5]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: February 2016

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:55,146 [as of 2015]
Truck traffic:18% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:55.4 tons [50.4 metric tons]
Inventory rating:33.7 tons [30.6 metric tons]
Sufficiency rating:56.7
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$78,539,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201656.7PoorPoorPoorFairSD55146
March 201355.1PoorFairPoorFairSD101755
August 201183.8FairSatisfactorySatisfactorySatisfactory-98587
August 200983.7FairSatisfactorySatisfactorySatisfactory-100589
February 200783.8FairSatisfactorySatisfactorySatisfactory-99193
September 200382.8FairFairSatisfactorySatisfactory-98170
July 200284.0FairGoodSatisfactorySatisfactory-96151
September 200185.9FairGoodSatisfactorySatisfactory-99236

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Closed Web/Box Girderlinear ft.8,6788,557852412
Steel Protective Coatingsq. ft.825,3100412,655412,6550
Steel Floor Beamlinear ft.16,83716,71612100
Steel Protective Coatingsq. ft.129,167107,14512,8317,3701,821
Substructure
Reinforced Concrete Columneach1616000
Reinforced Concrete Pier Walllinear ft.4564421400
Reinforced Concrete Abutmentlinear ft.3263151100
Concrete Protective Coatingsq. ft.680680000
Reinforced Concrete Pier Caplinear ft.4083951300
Deck
Corrugated or Orthotropic Decksq. ft.245,013225,62613,9545,4330
Wearing Surfacessq. ft.227,693227,693000
Joints
Assembly with Sealeach113113000
Open Jointlinear ft.113113000
Bearings
Movable Bearingeach4040000
Steel Protective Coatingsq. ft.4004000
Fixed Bearingeach44000
Steel Protective Coatingsq. ft.40400
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.4,3304,3000030
Reinforced Concrete Bridge Raillinear ft.4,3312,16502,1660