Share:

LA0047 over I C WATERWAY(GULF OUTLET

Map

Coordinates:
+30.00369, -89.93863
30°00'13" N, 89°56'19" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0047 over I C WATERWAY(GULF OUTLET
Structure number:023601480201061
Location:2.0 MI SOUTH OF I-10
Purpose:Carries highway over highway and waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:702.1 ft. [214.0 m]
Total length:6622.4 ft. [2018.4 m]
Roadway width between curbs:58.1 ft. [17.7 m]
Deck width edge-to-edge:66.3 ft. [20.2 m]
Vertical clearance above deck:17.1 ft. [5.2 m]
Vertical clearance below bridge:134.8 ft. [41.1 m]
Owner:State Highway Agency [01]
Year built:1967
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: November 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:28,100 [as of 2015]
Truck traffic:7% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances 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: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 assessed or calculated scour condition. [5]
Operating rating:56.9 tons [51.7 metric tons]
Inventory rating:33.9 tons [30.8 metric tons]
Sufficiency rating:73.3

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201673.3FairGoodSatisfactorySatisfactory-28100
October 201473.2FairGoodSatisfactorySatisfactory-27600
December 201273.2FairGoodSatisfactorySatisfactory-28500
January 201173.2FairGoodSatisfactorySatisfactory-28500
July 200873.2FairGoodSatisfactorySatisfactory-19400
August 200673.2FairSatisfactorySatisfactoryGood-24000
September 200373.2FairGoodSatisfactorySatisfactory-27800
May 199773.2GoodGoodGoodGood-31152
December 199471.0GoodGoodGoodGood-30810
June 199175.0GoodGoodGoodGood-23102

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.29,12028,6622002580
Prestressed Concrete Girder/Beamlinear ft.21,88821,888000
Steel Stringerlinear ft.10,0880010,0880
Deck
Reinforced Concrete Decksq. ft.437,901386,12551,77600
Superstructure
Steel Trusslinear ft.5,04402,3112,7330
Steel Floor Beamlinear ft.2,2402,14001000
Steel Pin or Pin & Hangar Assemblyeach44212300
Substructure
Reinforced Concrete Pier Walllinear ft.2320030
Reinforced Concrete Abutmentlinear ft.1741390350
Prestressed Concrete Pileeach125125000
Reinforced Concrete Pileeach132132000
Reinforced Concrete Pier Caplinear ft.5,0514,12809230
Joints
Pourable Jointlinear ft.2,1051,44566000
Compression Jointlinear ft.1,2057053500150
Open Jointlinear ft.720720000
Assembly without Seal Jointlinear ft.520520000
Bearings
Elastomeric Bearingeach550550000
Movable Bearingeach1780120580
Fixed Bearingeach1661264000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.26,11425,63248200
Deck
Reinforced Concrete Slabsq. ft.37,63037,630000