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IS 270 E over MISSISSIPPI RVR

Map

Coordinates:
+38.76528, -90.17581
38°45'55" N, 90°10'33" 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:52.5 ft. [16.0 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 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:59,788 [as of 2017]
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]
Sufficiency rating:66.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017FairFairFairFair5978866.0
June 2015FairFairFairFair5724363.0
June 2014PoorSatisfactoryPoorPoor5592548.0
June 2013PoorSatisfactoryPoorPoor5800348.0
June 2012PoorSatisfactorySatisfactoryPoor5983048.0
June 2011PoorSatisfactorySatisfactoryPoor5983048.0
May 2010PoorGoodSatisfactoryPoor6060847.9
May 2009PoorGoodSatisfactoryPoor6236147.9
May 2008PoorSatisfactorySatisfactoryPoor6061447.9
November 2007PoorGoodSatisfactoryPoor6421747.9
September 2005FairSatisfactorySatisfactoryGood5406374.9
September 2003FairSatisfactorySatisfactoryGood5295074.9
September 2001FairSatisfactorySatisfactoryGood5353874.9
October 1999FairSatisfactorySatisfactoryGood5097375.0
September 1998FairSatisfactorySatisfactoryGood5097375.0
October 1995FairSatisfactorySatisfactoryGood6010875.0
September 1994FairSatisfactorySatisfactoryGood5797875.0
September 1992FairSatisfactorySatisfactoryGood5833375.0
October 1991FairSatisfactorySatisfactoryGood5600275.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.39,69239,692000
Steel Protective Coatingsq. ft.609,117609,117000
Steel Stringerlinear ft.14,81214,812000
Steel Protective Coatingsq. ft.53,13653,136000
Deck
Reinforced Concrete Decksq. ft.348,359348,359000
Wearing Surfacessq. ft.303,016303,016000
Substructure
Reinforced Concrete Columneach8484000
Reinforced Concrete Abutmentlinear ft.191191000
Reinforced Concrete Pier Caplinear ft.2,9662,966000
Joints
Compression Jointlinear ft.546546000
Open Jointlinear ft.656656000
Bearings
Movable Bearingeach252252000
Steel Protective Coatingsq. ft.252252000
Fixed Bearingeach116116000
Steel Protective Coatingsq. ft.116116000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.10,82210,822000
Reinforced Concrete Bridge Raillinear ft.10,82210,822000