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LA0001 over PORT ALLEN CANAL

Map

Coordinates:
+30.42926, -91.21310
30°25'45" N, 91°12'47" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0001 over PORT ALLEN CANAL
Structure number:616100500708321
Location:1 MI N OF LA 988
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:200.1 ft. [61.0 m]
Total length:2469.3 ft. [752.6 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:34.1 ft. [10.4 m]
Vertical clearance below bridge:72.2 ft. [22.0 m]
Owner:State Highway Agency [01]
Year built:1960
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 [3]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:24,240 [as of 2015]
Truck traffic:7% of total traffic
Deck condition:Serious [3 out of 9]
Superstructure condition:Serious [3 out of 9]
Substructure condition:Serious [3 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
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 the assessed or calculated scour condition. [8]
Sufficiency rating:12.1
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$9,628,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2017PoorSeriousSeriousSerious2424012.1
March 2015PoorSeriousSeriousFair2424011.9
March 2013PoorSeriousSeriousFair2904018.4
August 2011PoorSeriousPoorFair2712042.6
May 2010PoorPoorFairFair2526062.1
April 2009PoorPoorFairFair2610062.0
March 2008FairFairSatisfactorySatisfactory2640075.8
March 2007FairFairSatisfactorySatisfactory2448076.0
March 2005FairFairSatisfactorySatisfactory2418076.0
March 2002FairSatisfactoryGoodSatisfactory2347677.2
March 2000FairSatisfactoryGoodSatisfactory2347662.0
March 1998FairSatisfactoryGoodSatisfactory2347663.0
March 1996FairSatisfactoryVery GoodSatisfactory2012663.5
March 1994FairSatisfactoryVery GoodSatisfactory1917564.2
March 1992FairSatisfactoryVery GoodSatisfactory1414264.8

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.9,8641,1427,933501288
Steel Protective Coatingsq. ft.106,192040,83858,8026,552
Deck
Reinforced Concrete Decksq. ft.83,84403083,8140
Substructure
Reinforced Concrete Columneach3823960
Steel Column Tower/Trestlelinear ft.1,0080098820
Steel Protective Coatingsq. ft.13,226006,5896,637
Reinforced Concrete Abutmentlinear ft.8881700
Reinforced Concrete Pile Cap/Footinglinear ft.6006000
Steel Pier Caplinear ft.6840642420
Steel Protective Coatingsq. ft.8,952004,4764,476
Reinforced Concrete Pier Caplinear ft.5835414200
Joints
Strip Seal Jointlinear ft.5656000
Pourable Jointlinear ft.4481911501052
Open Jointlinear ft.58835502330
Assembly without Seal Jointlinear ft.112802840
Bearings
Movable Bearingeach2001640
Fixed Bearingeach84824520
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.4,9324,8620070
Steel Protective Coatingsq. ft.24,66014,23010,43000