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LA0001 over PORT ALLEN CANAL

Map 

Coordinates:
+30.43200, -91.21113
30°25'55" N, 91°12'40" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:LA0001 over PORT ALLEN CANAL
Structure number:616100500708322
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: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]
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 201511.9PoorSeriousSeriousPoorSD24240
March 201317.9PoorSeriousSeriousPoorSD29040
August 201142.3PoorSeriousPoorFairSD27120
May 201061.8PoorPoorFairFairSD25260
April 200961.7PoorPoorFairFairSD26100
March 200864.9FairSatisfactoryFairSatisfactoryFO26400
March 200765.2FairSatisfactoryFairSatisfactoryFO24480
March 200565.2FairSatisfactoryFairSatisfactoryFO24180
March 200264.0FairSatisfactorySatisfactorySatisfactoryFO23476
March 200062.0FairSatisfactorySatisfactorySatisfactoryFO23476
March 199863.0FairSatisfactoryGoodSatisfactoryFO23476
March 199663.5FairSatisfactoryVery GoodSatisfactoryFO20126
March 199464.2FairSatisfactoryVery GoodSatisfactoryFO19175
March 199264.8FairSatisfactoryVery GoodSatisfactoryFO14142