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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
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

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:105.3 ft. [32.1 m]
Deck width edge-to-edge:113.2 ft. [34.5 m]
Vertical clearance below bridge:54.8 ft. [16.7 m]
Owner:State Highway Agency [01]
Year built:1963
Year reconstructed:1993
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 

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]
Evaluation:Structurally deficient [1]
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. ratingEvaluationDeckSuper.Sub.ADT
February 201656.7Structurally deficientPoorPoorFair55146
March 201355.1Structurally deficientFairPoorFair101755
August 201183.8Not deficientSatisfactorySatisfactorySatisfactory98587
August 200983.7Not deficientSatisfactorySatisfactorySatisfactory100589
February 200783.8Not deficientSatisfactorySatisfactorySatisfactory99193
September 200382.8Not deficientFairSatisfactorySatisfactory98170
July 200284.0Not deficientGoodSatisfactorySatisfactory96151
September 200185.9Not deficientGoodSatisfactorySatisfactory99236