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I0020 over I-20 OVER LA 17

Map

Coordinates:
+32.44293, -91.49430
32°26'35" N, 91°29'39" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I0020 over I-20 OVER LA 17
Structure number:054204510726061
Location:I-20 OVER LA 17
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:75.1 ft. [22.9 m]
Total length:220.2 ft. [67.1 m]
Roadway width between curbs:39.0 ft. [11.9 m]
Deck width edge-to-edge:42.7 ft. [13.0 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1970
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:5
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: October 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:13,250 [as of 2016]
Truck traffic:25% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 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:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:82.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2017FairSatisfactoryFairSatisfactory1325082.2
October 2015FairGoodFairGood1434084.2
December 2013FairGoodFairGood1422084.2
December 2011GoodGoodGoodGood1182098.0
November 2009GoodGoodGoodGood1356098.0
September 2007GoodGoodGoodGood1332098.0
September 2005GoodGoodGoodGood1422098.0
March 2003GoodGoodGoodGood1326098.0
August 2000GoodGoodGoodGood1200398.0
July 1998GoodGoodGoodGood1200398.0
July 1996GoodGoodGoodGood1036898.0
June 1994GoodGoodGoodGood1059498.0
May 1992GoodGoodGoodGood787498.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,3831,3117200
Deck
Reinforced Concrete Decksq. ft.8,8008,58022000
Substructure
Reinforced Concrete Columneach99000
Reinforced Concrete Abutmentlinear ft.8678800
Reinforced Concrete Pier Caplinear ft.129127020
Joints
Compression Jointlinear ft.200002000
Bearings
Elastomeric Bearingeach5050000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.4403578030