Share:

LA0001 over PORT ALLEN CANAL

Map 

Coordinates:
+30.43209, -91.21127
30°25'56" N, 91°12'41" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:LA0001 over PORT ALLEN CANAL
Structure number:616100500708321
Location:LA0001
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:75.1 ft. [22.9 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]
Operating rating:49.9 tons [45.4 metric tons]
Inventory rating:28.9 tons [26.3 metric tons]
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 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201712.1PoorSeriousSeriousSeriousSD24240
March 201511.9PoorSeriousSeriousFairSD24240
March 201318.4PoorSeriousSeriousFairSD29040
August 201142.6PoorSeriousPoorFairSD27120
May 201062.1PoorPoorFairFairSD25260
April 200962.0PoorPoorFairFairSD26100
March 200875.8FairFairSatisfactorySatisfactoryFO26400
March 200776.0FairFairSatisfactorySatisfactoryFO24480
March 200576.0FairFairSatisfactorySatisfactoryFO24180
March 200277.2FairSatisfactoryGoodSatisfactoryFO23476
March 200062.0FairSatisfactoryGoodSatisfactoryFO23476
March 199863.0FairSatisfactoryGoodSatisfactoryFO23476
March 199663.5FairSatisfactoryVery GoodSatisfactoryFO20126
March 199464.2FairSatisfactoryVery GoodSatisfactoryFO19175
March 199264.8FairSatisfactoryVery GoodSatisfactoryFO14142