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LA0070 over MISS RIVER/LA 18/LA 44

Map

Coordinates:
+30.09751, -90.91572
30°05'51" N, 90°54'57" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0070 over MISS RIVER/LA 18/LA 44
Structure number:614704260200721
Location:LA0070
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Other Principal Arterial (Urban) [14]
Tolls:Yes [1]
Length of largest span:825.2 ft. [251.5 m]
Total length:9102.5 ft. [2774.3 m]
Roadway width between curbs:56.1 ft. [17.1 m]
Deck width edge-to-edge:56.8 ft. [17.3 m]
Vertical clearance above deck:15.7 ft. [4.8 m]
Vertical clearance below bridge:132.9 ft. [40.5 m]
Owner:State Highway Agency [01]
Year built:1963
Year reconstructed:2004
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Number of main spans:48
Main spans material:Steel [3]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:16,900 [as of 2015]
Truck traffic:9% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Equal to present minimum criteria [6]
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]
Scour condition:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Operating rating:28.5 tons [25.9 metric tons]
Inventory rating:21.3 tons [19.4 metric tons]
Sufficiency rating:41.8
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$49,696,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201741.8FairSatisfactoryFairFair-16900
March 201536.8PoorSatisfactoryPoorFairSD16900
March 201336.8PoorSatisfactoryPoorFairSD16700
July 201148.9PoorSatisfactoryPoorFair-16200
January 201053.9FairGoodFairSatisfactory-15900
May 200764.9FairGoodSatisfactorySatisfactory-15400
May 200551.9FairVery GoodSatisfactorySatisfactory-16500
May 200363.9FairSatisfactorySatisfactorySatisfactory-16000
May 200163.9FairSatisfactorySatisfactorySatisfactory-14271
May 199961.9FairGoodSatisfactoryGood-14271
July 199761.9FairGoodSatisfactoryGood-14010
July 199561.9FairGoodSatisfactoryGood-12813
November 199361.9FairGoodSatisfactoryGood-7071
November 199161.9FairGoodSatisfactoryGood-9581

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.44,8000044,487313
Steel Stringerlinear ft.36,71036,710000
Deck
Reinforced Concrete Decksq. ft.512,424234,944277,48000
Superstructure
Steel Trusslinear ft.14,3991,24313,124320
Steel Floor Beamlinear ft.6,4847045,78000
Substructure
Reinforced Concrete Pier Walllinear ft.2320030
Reinforced Concrete Abutmentlinear ft.2061673450
Steel Pileeach112823000
Steel Pier Caplinear ft.3,24009002,3400
Joints
Compression Jointlinear ft.1,398641,33400
Open Jointlinear ft.9118760350
Assembly without Seal Jointlinear ft.44140318020
Bearings
Movable Bearingeach753021053310
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.25,77325,773000