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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:74.8 ft. [22.8 m]
Owner:State Highway Agency [01]
Year built:1960
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
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 2015 

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:Poor [4 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]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:49.5 tons [45.0 metric tons]
Inventory rating:28.7 tons [26.1 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:11.9
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. ratingEvaluationDeckSuper.Sub.ADT
March 201511.9Structurally deficientSeriousSeriousPoor24240
March 201317.9Structurally deficientSeriousSeriousPoor29040
August 201142.3Structurally deficientSeriousPoorFair27120
May 201061.8Structurally deficientPoorFairFair25260
April 200961.7Structurally deficientPoorFairFair26100
March 200864.9Functionally obsoleteSatisfactoryFairSatisfactory26400
March 200765.2Functionally obsoleteSatisfactoryFairSatisfactory24480
March 200565.2Functionally obsoleteSatisfactoryFairSatisfactory24180
March 200264.0Functionally obsoleteSatisfactorySatisfactorySatisfactory23476
March 200062.0Functionally obsoleteSatisfactorySatisfactorySatisfactory23476
March 199863.0Functionally obsoleteSatisfactoryGoodSatisfactory23476
March 199663.5Functionally obsoleteSatisfactoryVery GoodSatisfactory20126
March 199464.2Functionally obsoleteSatisfactoryVery GoodSatisfactory19175
March 199264.8Functionally obsoleteSatisfactoryVery GoodSatisfactory14142