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LA0082 over SUPERIOR CANAL

Map

Coordinates:
+29.70656, -92.67477
29°42'24" N, 92°40'29" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0082 over SUPERIOR CANAL
Structure number:071201940221101
Location:29.2 MI. S OF INT LA1143
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:209.0 ft. [63.7 m]
Total length:588.9 ft. [179.5 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:15.1 ft. [4.6 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1956
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
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: July 2017

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:240 [as of 2015]
Truck traffic:16% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Poor [4 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]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
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:27.1 tons [24.6 metric tons]
Inventory rating:21.0 tons [19.1 metric tons]
Sufficiency rating:38.4
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,394,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201738.4PoorPoorPoorFairSD240
July 201537.1PoorPoorPoorFairSD240
July 201410.0PoorFairPoorFairSD340
July 201312.8FairFairFairFairSD460
July 201211.8FairFairFairFairSD1170
July 201111.8FairFairFairFairSD1190
July 201011.8FairFairFairFairSD1210
July 200922.8GoodGoodGoodGoodSD1610
June 200822.8GoodGoodGoodGoodSD1590
June 200722.8GoodGoodGoodGoodSD1570
June 200622.8GoodGoodGoodGoodSD2000
June 200522.8GoodGoodGoodGoodSD1950
June 200422.8GoodGoodGoodGoodSD1860
June 200322.8GoodGoodGoodGoodSD1520
June 200222.8GoodGoodGoodGoodSD1470
June 200122.8GoodGoodGoodGoodSD1104
June 200020.8GoodGoodGoodGoodSD1104
June 199920.8GoodGoodGoodGoodSD1104
June 199820.8GoodGoodGoodGoodSD1104
June 199720.8GoodGoodGoodGoodSD1461
May 199620.8GoodGoodGoodGoodSD1505
May 199518.8GoodGoodGoodGoodSD1848
May 199420.8GoodGoodGoodGoodSD705
May 199320.8GoodGoodGoodGoodSD685
May 199220.8GoodGoodGoodGoodSD906

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.2,2681,33493400
Steel Stringerlinear ft.1,46376370000
Deck
Reinforced Concrete Decksq. ft.9,0726,80402,2680
Superstructure
Steel Trusslinear ft.8320766660
Steel Floor Beamlinear ft.493277200160
Substructure
Reinforced Concrete Pier Walllinear ft.8208200
Reinforced Concrete Abutmentlinear ft.5605600
Prestressed Concrete Pileeach9209200
Reinforced Concrete Pier Caplinear ft.512051200
Deck
Open Grid Decksq. ft.4,272004,2720
Concrete Filled Grid Decksq. ft.720007200
Joints
Open Jointlinear ft.504005040
Bearings
Movable Bearingeach192001920
Fixed Bearingeach108010800
Pot Bearingeach11000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,1721497592640