I0020 over I-20 OVER LA 17


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


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.
Prestressed Concrete Girder/Beamlinear ft.1,3831,3117200
Reinforced Concrete Decksq. ft.8,8008,58022000
Reinforced Concrete Columneach99000
Reinforced Concrete Abutmentlinear ft.8678800
Reinforced Concrete Pier Caplinear ft.129127020
Compression Jointlinear ft.200002000
Elastomeric Bearingeach5050000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.4403578030