+30.49884, -91.08837
30°29'56" N, 91°05'18" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:LA0946 over ROBERTS CANAL
Structure number:611708170801041
Location:5.46M NORTH OF LA 37
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:20.0 ft. [6.1 m]
Total length:160.1 ft. [48.8 m]
Roadway width between curbs:82.0 ft. [25.0 m]
Deck width edge-to-edge:84.6 ft. [25.8 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1992
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:8
Main spans material:Concrete [1]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: April 2015 

Status:Open, no restriction [A]
Average daily traffic:25,900 [as of 2015]
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry 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: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:74.2 tons [67.5 metric tons]
Inventory rating:44.6 tons [40.5 metric tons]
Sufficiency rating:78.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201578.0Not deficientGoodGoodSatisfactory25900
May 201378.0Not deficientGoodGoodSatisfactory12700
June 201179.0Not deficientGoodGoodSatisfactory13400
June 200980.0Not deficientVery GoodGoodGood14500
July 200780.0Not deficientGoodVery GoodVery Good15700
July 200580.0Not deficientVery GoodVery GoodVery Good14900
July 200380.0Not deficientVery GoodVery GoodVery Good14900
July 200180.0Not deficientVery GoodVery GoodVery Good13576
July 199980.0Not deficientVery GoodVery GoodVery Good10020
July 199780.0Not deficientVery GoodVery GoodVery Good10020
July 199580.0Not deficientVery GoodVery GoodVery Good10137
July 199380.0Not deficientVery GoodVery GoodVery Good9490
August 199263.6Functionally obsoleteSatisfactoryVery GoodVery Good9111
August 199063.6Functionally obsoleteSatisfactoryVery GoodVery Good9111