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I-65 SB over MOBILE RIVER DELTA

Map

Coordinates:
+30.90924, -87.97596
30°54'33" N, 87°58'33" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-65 SB over MOBILE RIVER DELTA
Structure number:012321
Location:5.5 MI N E US 43
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:799.9 ft. [243.8 m]
Total length:32100.0 ft. [9783.6 m]
Roadway width between curbs:39.0 ft. [11.9 m]
Deck width edge-to-edge:41.7 ft. [12.7 m]
Vertical clearance above deck:18.7 ft. [5.7 m]
Vertical clearance below bridge:23.0 ft. [7.0 m]
Owner:State Highway Agency [01]
Year built:1980
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Arch - Thru [12]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:11,300 [as of 2016]
Truck traffic:28% of total traffic
Deck condition:Satisfactory [6 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:Equal to present minimum criteria [6]
Underclearances appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Superior to present desirable criteria [9]
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 foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:80.8
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$302,555,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018FairSatisfactoryFairFair1130080.8
May 2016FairSatisfactoryFairFair1367080.5
May 2014FairSatisfactoryFairFair1352080.5
April 2013FairSatisfactoryFairFair997080.9
May 2012FairSatisfactoryFairFair997080.9
April 2011FairSatisfactoryFairFair976581.0
May 2010FairSatisfactoryFairFair976581.0
May 2008FairSatisfactoryFairFair978081.0
April 2006FairSatisfactoryFairSatisfactory999080.9
May 2005FairSatisfactorySatisfactorySatisfactory987092.1
May 2004FairSatisfactorySatisfactorySatisfactory965588.1
May 2002FairGoodSatisfactorySatisfactory899092.2
May 2000FairGoodSatisfactorySatisfactory966092.1
May 1998FairGoodSatisfactorySatisfactory779092.3
August 1996FairGoodFairFair723081.2
March 1993FairGoodFairGood611081.5
September 1991GoodGoodGoodGood497092.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.31,91631,53018217727
Steel Protective Coatingsq. ft.18,97618,976000
Prestressed Concrete Girder/Beamlinear ft.76,70576,1143552360
Steel Stringerlinear ft.52,67452,61040240
Steel Protective Coatingsq. ft.3,3483,348000
Deck
Reinforced Concrete Decksq. ft.698,798222,128462,04614,6240
Superstructure
Steel Archlinear ft.1,6001,5762220
Steel Main Cablelinear ft.9,9989,998000
Steel Floor Beamlinear ft.23,21723,066281230
Steel Protective Coatingsq. ft.28,46828,468000
Deck
Reinforced Concrete Top Flangesq. ft.639,702151,539462,85625,3070
Superstructure
Steel Gusset Plateeach68431690
Substructure
Reinforced Concrete Columneach2182041040
Reinforced Concrete Pier Walllinear ft.3002861400
Reinforced Concrete Abutmentlinear ft.84582330
Prestressed Concrete Pileeach46695343280
Reinforced Concrete Pier Caplinear ft.13,53213,239202910
Joints
Strip Seal Jointlinear ft.14319562048
Compression Jointlinear ft.66041250
Assembly with Sealeach1,5011,501000
Open Jointlinear ft.2,3352,335000
Bearings
Elastomeric Bearingeach2,3602,28363140
Movable Bearingeach1523534830
Fixed Bearingeach1322255550
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.64,19763,9111401460