Share:

LA0001 over PORT ALLEN CANAL

Map

Coordinates:
+30.43523, -91.20940
30°26'07" N, 91°12'34" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0001 over PORT ALLEN CANAL
Structure number:616100500708322
Location:1.2 MI S OF LA 76
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:Open, no restriction [A]
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: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]
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 2015PoorSeriousSeriousPoor2424011.9
March 2013PoorSeriousSeriousPoor2904017.9
August 2011PoorSeriousPoorFair2712042.3
May 2010PoorPoorFairFair2526061.8
April 2009PoorPoorFairFair2610061.7
March 2008FairSatisfactoryFairSatisfactory2640064.9
March 2007FairSatisfactoryFairSatisfactory2448065.2
March 2005FairSatisfactoryFairSatisfactory2418065.2
March 2002FairSatisfactorySatisfactorySatisfactory2347664.0
March 2000FairSatisfactorySatisfactorySatisfactory2347662.0
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.9,86406,8002,148916
Steel Protective Coatingsq. ft.106,192011,70276,23418,256
Deck
Reinforced Concrete Decksq. ft.83,84434,7298,26040,8550
Substructure
Reinforced Concrete Columneach38199100
Steel Column Tower/Trestlelinear ft.1,0084914713412
Steel Protective Coatingsq. ft.13,22602,50010,70224
Reinforced Concrete Abutmentlinear ft.88413440
Reinforced Concrete Pile Cap/Footinglinear ft.5608480
Steel Pier Caplinear ft.68402574270
Steel Protective Coatingsq. ft.8,952004,4764,476
Reinforced Concrete Pier Caplinear ft.5835403940
Joints
Pourable Jointlinear ft.448000448
Compression Jointlinear ft.84012756
Open Jointlinear ft.5603072916856
Assembly without Seal Jointlinear ft.112005656
Bearings
Movable Bearingeach60011454
Steel Protective Coatingsq. ft.36406425545
Fixed Bearingeach1000127414
Steel Protective Coatingsq. ft.8820254200428
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.4,9324,89230100
Steel Protective Coatingsq. ft.24,66024,6500100