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IS 270 E over MISSISSIPPI RVR

Map

Coordinates:
+38.76614, -90.17890
38°45'58" N, 90°10'44" W

Facts

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

Good/Fair/Poor Condition:Fair
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. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201563.0FairFairFairFair-57243
June 201448.0PoorSatisfactoryPoorPoorSD55925
June 201348.0PoorSatisfactoryPoorPoorSD58003
June 201248.0PoorSatisfactorySatisfactoryPoorSD59830
June 201148.0PoorSatisfactorySatisfactoryPoorSD59830
May 201047.9PoorGoodSatisfactoryPoorSD60608
May 200947.9PoorGoodSatisfactoryPoorSD62361
May 200847.9PoorSatisfactorySatisfactoryPoorSD60614
November 200747.9PoorGoodSatisfactoryPoorSD64217
September 200574.9FairSatisfactorySatisfactoryGood-54063
September 200374.9FairSatisfactorySatisfactoryGood-52950
September 200174.9FairSatisfactorySatisfactoryGood-53538
October 199975.0FairSatisfactorySatisfactoryGood-50973
September 199875.0FairSatisfactorySatisfactoryGood-50973
October 199575.0FairSatisfactorySatisfactoryGood-60108
September 199475.0FairSatisfactorySatisfactoryGood-57978
September 199275.0FairSatisfactorySatisfactoryGood-58333
October 199175.0FairSatisfactorySatisfactoryGood-56002