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I 20 over WEST HIGHLAND DRIVE

Map

Coordinates:
+32.28866, -90.24054
32°17'19" N, 90°14'26" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 20 over WEST HIGHLAND DRIVE
Structure number:11000200250426B
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:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:70.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2016FairFairGoodFair3800070.2
August 2014FairFairVery GoodSatisfactory3700084.0
August 2012FairFairVery GoodVery Good3800086.0
July 2010FairFairVery GoodVery Good3950085.9
June 2008GoodGoodVery 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 Good3000089.5
November 1996GoodVery GoodVery GoodVery Good2800088.1
January 1995GoodVery GoodVery GoodVery Good2800088.7
April 1991GoodVery GoodVery GoodVery Good2535088.9

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,0801,074600
Deck
Reinforced Concrete Decksq. ft.9,7980509,7480
Substructure
Reinforced Concrete Columneach66000
Reinforced Concrete Abutmentlinear ft.167840380
Reinforced Concrete Pier Caplinear ft.105102030
Joints
Compression Jointlinear ft.204000204
Bearings
Elastomeric Bearingeach3636000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.364355630