I0020 over I-20 OVER US 425


+32.45699, -91.75820
32°27'25" N, 91°45'30" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I0020 over I-20 OVER US 425
Structure number:054204510710512
Location:I-20 OVER LA 137
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:69.9 ft. [21.3 m]
Total length:320.9 ft. [97.8 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:42.7 ft. [13.0 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
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 / 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:16,500 [as of 2016]
Truck traffic:25% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:98.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2017FairSatisfactoryGoodSatisfactory1650098.0
October 2015GoodGoodGoodGood1806098.0
November 2013GoodGoodGoodGood1788098.0
November 2011GoodGoodGoodGood1530098.0
November 2009GoodGoodGoodGood1776098.0
September 2007GoodGoodGoodGood1698098.0
September 2005GoodGoodGoodGood1770098.0
March 2003GoodGoodGoodGood1608098.0
July 2000GoodGoodGoodGood1399698.0
June 1998GoodGoodGoodGood1399698.0
July 1996GoodGoodGoodGood1186998.0
July 1994GoodGoodGoodGood1440598.0
May 1992GoodGoodGoodGood892398.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.1,7731,773000
Reinforced Concrete Decksq. ft.12,8479,6221,9401,2850
Reinforced Concrete Columneach115600
Reinforced Concrete Abutmentlinear ft.10296240
Reinforced Concrete Pier Caplinear ft.1511390120
Open Jointlinear ft.20910901000
Elastomeric Bearingeach5656000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.640640000
Steel Protective Coatingsq. ft.3,2003,200000