LA0408 over BAYOU


+30.52107, -91.16412
30°31'16" N, 91°09'51" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:LA0408 over BAYOU
Structure number:611702550101601
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:29.9 ft. [9.1 m]
Total length:117.1 ft. [35.7 m]
Roadway width between curbs:52.2 ft. [15.9 m]
Deck width edge-to-edge:84.3 ft. [25.7 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1976
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:5
Main spans material:Concrete [1]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2016 

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:13,800 [as of 2015]
Truck traffic:8% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:54.9 tons [49.9 metric tons]
Inventory rating:32.9 tons [29.9 metric tons]
Sufficiency rating:76.8

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201676.8GoodGoodGoodGood-13800
September 201476.3GoodGoodGoodGood-14700
October 201274.3GoodGoodGoodGood-20200
November 201072.9GoodGoodGoodVery Good-24000
November 200873.1GoodGood-Very Good-23600
November 200669.6GoodGoodVery GoodVery Good-24900
November 200470.6GoodGoodVery GoodVery Good-22100
November 200270.9GoodGoodVery GoodVery Good-21300
November 200072.2GoodGoodVery GoodVery Good-17747
November 199872.6GoodVery GoodVery GoodVery Good-16623
November 199674.6GoodVery GoodVery GoodVery Good-16623
November 199473.9GoodVery GoodVery GoodVery Good-17270
November 199272.8GoodVery GoodVery GoodVery Good-20243
November 199072.8GoodVery GoodVery GoodVery Good-20243