+30.14164, -89.86381
30°08'30" N, 89°51'50" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US0011 over IRISH BAYOU
Structure number:023600180104831
Location:4.83 MI NORTH OF US 90
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:20.0 ft. [6.1 m]
Total length:339.9 ft. [103.6 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:42.7 ft. [13.0 m]
Owner:State Highway Agency [01]
Year built:1978
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:17
Main spans material:Concrete [1]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: November 2016

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:3,200 [as of 2015]
Truck traffic:9% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry 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]
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:38.5 tons [35.0 metric tons]
Sufficiency rating:47.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,443,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201647.0PoorFairFairPoorSD3200
December 201547.0PoorFairFairPoorSD3200
December 201447.0PoorFairFairPoorSD3200
January 201447.0PoorFairSatisfactoryPoorSD3300
January 201275.0FairGoodGoodSatisfactory-3900
February 201164.0FairGoodSatisfactoryFair-3900
January 201064.0FairGoodSatisfactoryFair-4200
January 200964.0FairGoodSatisfactoryFair-4600
December 200763.0FairSatisfactoryFairFair-5200
December 200663.0FairSatisfactoryFairFair-5100
August 200563.0FairSatisfactoryFairFair-5100
June 200464.0FairSatisfactoryFairFair-4900
July 200362.0FairFairFairFair-5400
November 200062.0FairFairFairFair-5748
October 199874.0FairSatisfactoryGoodSatisfactory-5748
July 199675.0GoodVery GoodVery GoodVery Good-3722
July 199475.0GoodVery GoodVery GoodVery Good-3529
May 199274.0GoodVery GoodVery GoodVery Good-5777