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US0071 over TWELVE MILE BAYOU

Map

Coordinates:
+32.55041, -93.77940
32°33'01" N, 93°46'46" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US0071 over TWELVE MILE BAYOU
Structure number:040900110103131
Location:.1 MI NORTH OF LA 173
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:73.2 ft. [22.3 m]
Total length:487.9 ft. [148.7 m]
Roadway width between curbs:82.7 ft. [25.2 m]
Deck width edge-to-edge:84.6 ft. [25.8 m]
Skew angle:25°
Owner:State Highway Agency [01]
Year built:1990
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:7
Main spans material:Prestressed concrete continuous [6]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: February 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:28,800 [as of 2016]
Truck traffic:11% of total traffic
Deck condition:Good [7 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:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Sufficiency rating:84.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2018GoodGoodGoodGood2880084.7
February 2016GoodGoodGoodGood2940084.4
February 2014GoodGoodGoodGood3560081.6
February 2012GoodGoodGoodGood4060083.6
February 2010GoodGoodGoodGood3820083.6
February 2008GoodVery GoodVery GoodVery Good3580083.6
March 2006GoodVery GoodVery GoodVery Good3200084.4
January 2004GoodVery GoodVery GoodVery Good3030085.0
February 2002GoodVery GoodVery GoodVery Good2317189.3
February 2000GoodVery GoodVery GoodVery Good2577588.3
February 1998GoodVery GoodVery GoodVery Good2577588.3
March 1996GoodVery GoodVery GoodVery Good1834391.1
March 1994GoodVery GoodVery GoodVery Good2791387.5
February 1992GoodVery GoodVery GoodVery Good2791387.5

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.5,5385,538000
Deck
Reinforced Concrete Decksq. ft.44,54342,1082,43500
Substructure
Reinforced Concrete Pier Walllinear ft.135135000
Reinforced Concrete Abutmentlinear ft.210210000
Prestressed Concrete Pileeach5352100
Reinforced Concrete Pier Caplinear ft.645645000
Joints
Open Jointlinear ft.382382000
Bearings
Elastomeric Bearingeach156156000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,0811,081000