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LA0082 over MERMENTAU R./G.CHENIER

Map

Coordinates:
+29.77048, -93.01432
29°46'14" N, 93°00'52" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0082 over MERMENTAU R./G.CHENIER
Structure number:071201940200001
Location:8.25 MI. S OF INT LA1143
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:204.1 ft. [62.2 m]
Total length:1048.9 ft. [319.7 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:30.2 ft. [9.2 m]
Vertical clearance above deck:16.1 ft. [4.9 m]
Vertical clearance below bridge:15.1 ft. [4.6 m]
Owner:State Highway Agency [01]
Year built:1959
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 13.5 / H 15 [2]
Main span material:Steel [3]
Main span design:Movable - Swing [17]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: April 2017

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:1,150 [as of 2015]
Truck traffic:7% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:26.0 tons [23.6 metric tons]
Inventory rating:8.0 tons [7.3 metric tons]
Sufficiency rating:38.1
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$4,098,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201738.1FairSatisfactorySatisfactorySatisfactorySD1150
April 201537.8FairSatisfactorySatisfactorySatisfactorySD1150
April 201437.8FairSatisfactorySatisfactorySatisfactorySD1150
May 201337.8FairSatisfactorySatisfactorySatisfactorySD1150
April 201237.8FairSatisfactorySatisfactorySatisfactorySD1400
April 201137.8FairSatisfactorySatisfactorySatisfactorySD1490
February 201037.8FairSatisfactorySatisfactorySatisfactoryFO1990
February 200937.8FairSatisfactorySatisfactorySatisfactoryFO1990
March 200837.8FairSatisfactorySatisfactorySatisfactorySD1990
February 200737.8FairSatisfactorySatisfactorySatisfactoryFO1930
January 200635.8FairSatisfactorySatisfactoryGoodFO2100
January 200535.8FairSatisfactorySatisfactoryGoodFO2200
August 200335.8FairSatisfactorySatisfactoryGoodFO2500
September 200235.8FairSatisfactorySatisfactoryGoodSD2500
June 200135.8FairSatisfactorySatisfactoryGoodSD2204
June 200033.8FairSatisfactorySatisfactoryGoodSD2204
June 199933.8FairSatisfactorySatisfactorySatisfactorySD2204
June 199833.8FairSatisfactorySatisfactorySatisfactorySD2204
May 199733.8FairSatisfactorySatisfactorySatisfactorySD2372
June 199633.8FairSatisfactorySatisfactorySatisfactorySD2482
July 199533.8FairSatisfactorySatisfactorySatisfactorySD2410
July 199433.8FairSatisfactorySatisfactorySatisfactorySD2374
June 199335.8FairSatisfactorySatisfactorySatisfactoryFO1601
April 199235.8FairSatisfactorySatisfactorySatisfactoryFO1960

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.1,4281,428000
Steel Stringerlinear ft.1,2481,248000
Deck
Reinforced Concrete Decksq. ft.8,9883,3704,4941,1240
Superstructure
Steel Trusslinear ft.6245269800
Steel Floor Beamlinear ft.1681006800
Substructure
Reinforced Concrete Abutmentlinear ft.72264600
Reinforced Concrete Pileeach123012300
Reinforced Concrete Pier Caplinear ft.884117700670
Deck
Open Grid Decksq. ft.4,8444,844000
Concrete Filled Grid Decksq. ft.868868000
Joints
Pourable Jointlinear ft.64848616200
Open Jointlinear ft.260260000
Bearings
Movable Bearingeach3200320
Fixed Bearingeach168800
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.2,1162,116000
Deck
Reinforced Concrete Slabsq. ft.12,8409,63003,2100