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US 90/COCHRANE BR over MOBILE RIVER

Map

Coordinates:
+30.73399, -88.04476
30°44'02" N, 88°02'41" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 90/COCHRANE BR over MOBILE RIVER
Structure number:015430
Location:0.2 MI E US 43
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:779.9 ft. [237.7 m]
Total length:7291.4 ft. [2222.3 m]
Roadway width between curbs:79.7 ft. [24.3 m]
Deck width edge-to-edge:91.9 ft. [28.0 m]
Vertical clearance below bridge:39.4 ft. [12.0 m]
Owner:State Highway Agency [01]
Year built:1991
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:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Stayed girder [14]
Deck type:Concrete Precast Panels [2]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: May 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:16,250 [as of 2015]
Truck traffic:25% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Better than present minimum criteria [7]
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 the assessed or calculated scour condition. [8]
Sufficiency rating:78.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$154,210,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017FairSatisfactorySatisfactorySatisfactory1625078.0
May 2015FairSatisfactorySatisfactorySatisfactory1172078.0
January 2013FairSatisfactorySatisfactorySatisfactory1175078.0
January 2011FairSatisfactorySatisfactorySatisfactory1080078.0
March 2009FairSatisfactorySatisfactorySatisfactory1089078.0
February 2007FairSatisfactorySatisfactorySatisfactory1063078.0
January 2005FairSatisfactorySatisfactorySatisfactory985078.0
December 2002FairSatisfactoryGoodSatisfactory1111078.0
September 2000FairSatisfactoryGoodSatisfactory960078.0
September 1998FairSatisfactorySatisfactorySatisfactory687078.0
September 1996FairSatisfactorySatisfactorySatisfactory839078.0
October 1994FairSatisfactoryGoodGood730078.1
July 1992GoodGoodGoodGood706078.1

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Closed Web/Box Girderlinear ft.14,58212,7971,6821030
Steel Main Cablelinear ft.8,9958,995000
Deck
Reinforced Concrete Top Flangesq. ft.670,772374,252285,67210,8480
Substructure
Reinforced Concrete Columneach6457700
Reinforced Concrete Abutmentlinear ft.100464860
Reinforced Concrete Pier Caplinear ft.72261863410
Joints
Assembly without Seal Jointlinear ft.736073600
Bearings
Pot Bearingeach1601204000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.29,16428,94521900