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I 20 over WEST HIGHLAND DRIVE

Map

Coordinates:
+32.28923, -90.23997
32°17'21" N, 90°14'24" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 20 over WEST HIGHLAND DRIVE
Structure number:11000200250426A
Location:1.6 MI E SR 18
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:60.0 ft. [18.3 m]
Total length:182.1 ft. [55.5 m]
Roadway width between curbs:50.9 ft. [15.5 m]
Deck width edge-to-edge:53.8 ft. [16.4 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1968
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:3
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: October 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:38,000 [as of 2014]
Truck traffic:13% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:84.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2016FairFairGoodGood3800084.0
August 2014FairFairGoodVery Good3700086.1
August 2012FairFairGoodVery Good3800086.0
July 2010FairFairGoodVery Good3950085.9
June 2008FairSatisfactoryVery GoodVery Good3750085.1
June 2006GoodVery GoodVery GoodVery Good3650088.1
October 2004GoodVery GoodVery GoodVery Good3500089.2
August 2002GoodVery GoodVery GoodVery Good3850088.0
September 2000GoodVery GoodVery GoodVery Good3000088.4
September 1998GoodVery GoodVery GoodVery Good3000088.4
November 1996GoodVery GoodVery GoodVery Good2800087.1
January 1995GoodVery GoodVery GoodVery Good2800085.6
April 1991GoodVery GoodVery GoodVery Good2535085.8

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,0801,0562400
Deck
Reinforced Concrete Decksq. ft.9,79809,79800
Substructure
Reinforced Concrete Columneach60600
Reinforced Concrete Abutmentlinear ft.160160000
Reinforced Concrete Pier Caplinear ft.106862000
Joints
Compression Jointlinear ft.204204000
Bearings
Elastomeric Bearingeach3636000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.364364000