+30.41076, -91.13178
30°24'39" N, 91°07'54" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:LA0427 over DAWSON CREEK
Structure number:611702580201691
Location:1.69 M. NE OF LA 3064
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:20.0 ft. [6.1 m]
Total length:180.1 ft. [54.9 m]
Roadway width between curbs:63.7 ft. [19.4 m]
Deck width edge-to-edge:74.8 ft. [22.8 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1986
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:9
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: July 2014 

Status:Open, no restriction [A]
Average daily traffic:33,300 [as of 2014]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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 protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:59.4 tons [54.0 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:86.6

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201486.6Not deficientSatisfactorySatisfactorySatisfactory33300
July 201286.7Not deficientGoodGoodSatisfactory32700
September 201091.6Not deficientGoodGoodSatisfactory34300
September 200891.6Not deficientGood-Satisfactory33900
September 200691.7Not deficientGoodGoodVery Good33300
September 200491.6Not deficientVery GoodVery GoodVery Good33900
September 200291.7Not deficientVery GoodVery GoodVery Good33300
September 200091.9Not deficientVery GoodVery GoodVery Good30954
September 199892.1Not deficientVery GoodVery GoodVery Good29361
September 199692.2Not deficientVery GoodVery GoodVery Good28392
September 199492.9Not deficientVery GoodVery GoodVery Good26556
September 199293.1Not deficientVery GoodVery GoodVery Good23481
September 199093.1Not deficientVery GoodVery GoodVery Good23481