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I-65 NB over MOBILE RIVER DELTA

Map

Coordinates:
+30.90876, -87.97581
30°54'32" N, 87°58'33" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-65 NB over MOBILE RIVER DELTA
Structure number:012322
Old structure number:00000I65490243B (from 1992 edition)
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:32107.2 ft. [9785.8 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: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: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:79.8
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$302,627,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018FairFairFairFair1130079.8
May 2016FairFairFairFair1367079.5
May 2014FairFairFairFair1352079.5
May 2012FairFairFairFair997079.9
May 2010FairSatisfactoryFairFair976581.0
May 2008FairSatisfactoryFairFair978081.0
May 2006FairSatisfactoryFairFair999080.9
May 2004FairSatisfactoryFairFair965578.9
May 2002FairSatisfactorySatisfactorySatisfactory899092.2
May 2000FairGoodSatisfactorySatisfactory966092.1
May 1998FairGoodSatisfactorySatisfactory779092.3
August 1996FairGoodFairFair723081.2
February 1993FairGoodSatisfactoryGood611092.5
September 1991GoodGoodGoodGood497092.6
October 1990GoodGoodGoodGood524592.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.31,97730,6942111,04428
Steel Protective Coatingsq. ft.18,26318,263000
Prestressed Concrete Girder/Beamlinear ft.76,70576,356852640
Steel Stringerlinear ft.52,70252,700020
Steel Protective Coatingsq. ft.3,2223,222000
Deck
Reinforced Concrete Decksq. ft.699,109268,243405,43025,4360
Superstructure
Steel Archlinear ft.1,6001,28032000
Steel Main Cablelinear ft.9,9989,9801800
Steel Floor Beamlinear ft.23,88223,751113180
Steel Protective Coatingsq. ft.29,84429,844000
Deck
Reinforced Concrete Top Flangesq. ft.639,703259,063378,4052,2350
Superstructure
Steel Gusset Plateeach6806800
Substructure
Reinforced Concrete Columneach466462220
Reinforced Concrete Pier Walllinear ft.30023728350
Reinforced Concrete Abutmentlinear ft.1641461800
Prestressed Concrete Pileeach2161921770
Reinforced Concrete Pier Caplinear ft.13,57013,416127270
Joints
Strip Seal Jointlinear ft.1670568625
Compression Jointlinear ft.42024180
Assembly with Sealeach1,5011,20247288
Open Jointlinear ft.2,3352,334010
Bearings
Elastomeric Bearingeach2,3602,3134160
Movable Bearingeach1541383130
Fixed Bearingeach128012800
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.64,21258,2395,949240