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LA0408 over BLACKWATER BAYOU

Map 

Coordinates:
+30.53553, -91.08129
30°32'08" N, 91°04'53" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:LA0408 over BLACKWATER BAYOU
Structure number:611702550203932
Location:61172550203932
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:49.9 ft. [15.2 m]
Total length:149.9 ft. [45.7 m]
Roadway width between curbs:34.1 ft. [10.4 m]
Deck width edge-to-edge:46.6 ft. [14.2 m]
Owner:State Highway Agency [01]
Year built:1984
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:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: April 2014 

Status:Open, no restriction [A]
Average daily traffic:10,920 [as of 2014]
Truck traffic:9% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Very Good [8 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:75.2 tons [68.4 metric tons]
Inventory rating:44.6 tons [40.5 metric tons]
Sufficiency rating:91.3

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201491.3Not deficientGoodGoodVery Good10920
April 201291.4Not deficientGoodGoodVery Good10740
March 201091.2Not deficientVery GoodVery GoodVery Good11580
March 200891.2Not deficientGoodVery GoodVery Good11520
March 200691.2Not deficientGoodVery GoodVery Good11640
March 200491.2Not deficientGoodVery GoodVery Good11580
March 200291.4Not deficientVery GoodVery GoodVery Good10506
March 200091.4Not deficientVery GoodVery GoodVery Good10261
March 199891.4Not deficientVery GoodVery GoodVery Good10261
March 199691.4Not deficientVery GoodVery GoodVery Good10569
March 199491.5Not deficientVery GoodVery GoodVery Good8872
March 199291.6Not deficientVery GoodVery GoodVery Good8643