+29.56727, -90.71770
29°34'02" N, 90°43'04" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0315 over BAYOU DULARGE
Structure number:025502459009801
Location:.01 MI NORTH OF LA 661
Purpose:Carries highway over highway and waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:149.9 ft. [45.7 m]
Total length:2311.1 ft. [704.4 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:39.4 ft. [12.0 m]
Vertical clearance below bridge:49.2 ft. [15.0 m]
Owner:State Highway Agency [01]
Year built:1977
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Open Grating [3]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:5,700 [as of 2016]
Truck traffic:5% 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:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:83.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017GoodGoodGoodGood570083.4
September 2016GoodGoodGoodGood570083.4
September 2014GoodGoodGoodGood570083.2
November 2012GoodGoodGoodGood1720084.0
December 2010GoodGoodGoodGood1620082.1
June 2008GoodGoodGoodGood1600082.1
June 2006FairSatisfactorySatisfactoryGood1820069.5
February 2003FairSatisfactorySatisfactoryGood1520082.2
September 2000FairGoodSatisfactoryGood1349282.4
July 1997FairGoodSatisfactoryGood1442382.3
January 1995GoodGoodGoodGood1081782.6
December 1994FairSatisfactorySatisfactoryGood1025682.9
November 1993FairFairSatisfactoryGood760082.1
October 1992FairFairSatisfactoryGood761282.1
October 1991FairFairSatisfactoryGood761282.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.8527920600
Steel Protective Coatingsq. ft.11,00011,000000
Prestressed Concrete Girder/Beamlinear ft.10,38010,380000
Steel Stringerlinear ft.9709502000
Steel Protective Coatingsq. ft.4,3504,350000
Reinforced Concrete Decksq. ft.74,09273,88021200
Steel Floor Beamlinear ft.4804050750
Steel Protective Coatingsq. ft.2,0002,000000
Reinforced Concrete Columneach5050000
Reinforced Concrete Pier Walllinear ft.7070000
Reinforced Concrete Abutmentlinear ft.8080000
Steel Pileeach3002460
Reinforced Concrete Pier Caplinear ft.1,1381,0884550
Open Grid Decksq. ft.5,4005,400000
Concrete Filled Grid Decksq. ft.1,5841,33425000
Pourable Jointlinear ft.266002660
Compression Jointlinear ft.950252110145443
Open Jointlinear ft.152152000
Elastomeric Bearingeach300299100
Movable Bearingeach88000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.4,5904,590000
Reinforced Concrete Slabsq. ft.5,3205,08024000