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IS 270 E over MISSISSIPPI RVR

Map 

Coordinates:
+38.76614, -90.17890
38°45'58" N, 90°10'44" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:IS 270 E over MISSISSIPPI RVR
Structure number:643
Old structure number:A 890 4 (from 1992 edition)
Location:S 36 T 47 N R 7 E
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:242.5 ft. [73.9 m]
Total length:5411.4 ft. [1649.3 m]
Roadway width between curbs:58.1 ft. [17.7 m]
Deck width edge-to-edge:62.7 ft. [19.1 m]
Vertical clearance below bridge:53.8 ft. [16.4 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1964
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:29
Main spans material:Steel continuous [4]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Other [9]

Latest Available Inspection: June 2015 

Status:Open, no restriction [A]
Average daily traffic:57,243 [as of 2015]
Truck traffic:18% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:58.4 tons [53.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:63.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201563.0Not deficientFairFairFair57243
June 201448.0Structurally deficientSatisfactoryPoorPoor55925
June 201348.0Structurally deficientSatisfactoryPoorPoor58003
June 201248.0Structurally deficientSatisfactorySatisfactoryPoor59830
June 201148.0Structurally deficientSatisfactorySatisfactoryPoor59830
May 201047.9Structurally deficientGoodSatisfactoryPoor60608
May 200947.9Structurally deficientGoodSatisfactoryPoor62361
May 200847.9Structurally deficientSatisfactorySatisfactoryPoor60614
November 200747.9Structurally deficientGoodSatisfactoryPoor64217
September 200574.9Not deficientSatisfactorySatisfactoryGood54063
September 200374.9Not deficientSatisfactorySatisfactoryGood52950
September 200174.9Not deficientSatisfactorySatisfactoryGood53538
October 199975.0Not deficientSatisfactorySatisfactoryGood50973
September 199875.0Not deficientSatisfactorySatisfactoryGood50973
October 199575.0Not deficientSatisfactorySatisfactoryGood60108
September 199475.0Not deficientSatisfactorySatisfactoryGood57978
September 199275.0Not deficientSatisfactorySatisfactoryGood58333
October 199175.0Not deficientSatisfactorySatisfactoryGood56002