LA0023 over I C WATERWAY


+29.87168, -90.00984
29°52'18" N, 90°00'35" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0023 over I C WATERWAY
Structure number:023800620200432
Location:.2 MI SOUTH OF LA 3017
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:149.9 ft. [45.7 m]
Total length:2558.2 ft. [779.7 m]
Roadway width between curbs:28.2 ft. [8.6 m]
Deck width edge-to-edge:33.8 ft. [10.3 m]
Vertical clearance above deck:16.1 ft. [4.9 m]
Vertical clearance below bridge:99.1 ft. [30.2 m]
Owner:State Highway Agency [01]
Year built:1968
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Movable - Lift [15]
Deck type:Open Grating [3]

Latest Available Inspection: December 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:19,860 [as of 2015]
Truck traffic:6% 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:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present desirable criteria [8]
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]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:67.9 tons [61.7 metric tons]
Inventory rating:39.9 tons [36.3 metric tons]
Sufficiency rating:65.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$9,975,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
December 201665.0FairSatisfactoryFairSatisfactoryFO19860
March 201576.0FairSatisfactorySatisfactorySatisfactoryFO19860
March 201376.0FairSatisfactorySatisfactorySatisfactoryFO23460
March 201176.0FairSatisfactorySatisfactorySatisfactoryFO24480
March 201065.0FairSatisfactoryFairSatisfactoryFO19674
February 200965.0FairSatisfactoryFairSatisfactoryFO23400
January 200863.0FairFairFairFairFO22920
January 200747.0PoorFairFairPoorSD21120
April 200447.0PoorFairFairPoorSD20520
June 200044.7PoorFairFairPoorSD19674
June 199844.7PoorFairFairPoorSD17937
August 199573.7GoodGoodGoodGoodFO17241
October 199373.7GoodGoodGoodGoodFO17411
September 199173.7GoodGoodGoodGoodFO15329

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,2531,253000
Prestressed Concrete Girder/Beamlinear ft.7,6047,604000
Steel Stringerlinear ft.1,2561,256000
Reinforced Concrete Decksq. ft.70,562070,56200
Steel Floor Beamlinear ft.306306000
Reinforced Concrete Pier Walllinear ft.77000
Reinforced Concrete Abutmentlinear ft.7676000
Reinforced Concrete Pileeach6060000
Steel Pier Caplinear ft.106106000
Reinforced Concrete Pier Caplinear ft.1,35490644800
Open Grid Decksq. ft.5,3385,338000
Pourable Jointlinear ft.45222422800
Open Jointlinear ft.97689604040
Elastomeric Bearingeach250250000
Movable Bearingeach1001000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.314314000
Reinforced Concrete Bridge Raillinear ft.2,9502,950000
Reinforced Concrete Slabsq. ft.9,79209,79200