Share:

LA0033 over BAYOU DARBONNE

Map

Coordinates:
+32.75572, -92.41622
32°45'21" N, 92°24'58" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LA0033 over BAYOU DARBONNE
Structure number:055600690207121
Location:1.2 MI NORTH OF LA 15
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:60.0 ft. [18.3 m]
Total length:962.0 ft. [293.2 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:33.5 ft. [10.2 m]
Owner:State Highway Agency [01]
Year built:1963
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:16
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: May 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:8,700 [as of 2015]
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:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
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:89.8 tons [81.6 metric tons]
Inventory rating:43.9 tons [39.9 metric tons]
Sufficiency rating:67.7

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201667.7FairSatisfactorySatisfactorySatisfactory-8700
April 201467.7FairSatisfactorySatisfactorySatisfactory-8800
April 201267.7FairSatisfactorySatisfactorySatisfactory-9800
May 201067.7FairSatisfactorySatisfactorySatisfactory-12100
May 200867.7FairSatisfactorySatisfactorySatisfactory-11700
February 200667.7FairSatisfactorySatisfactorySatisfactory-9800
September 200367.7FairSatisfactorySatisfactorySatisfactory-10100
February 200165.4FairSatisfactorySatisfactorySatisfactory-7910
April 199965.4FairSatisfactorySatisfactorySatisfactory-7149
February 199765.4FairSatisfactorySatisfactorySatisfactory-7149
December 199465.4FairSatisfactoryGoodGood-7820
October 199265.9FairSatisfactorySatisfactorySatisfactory-3087
September 199065.9FairSatisfactorySatisfactorySatisfactory-3087

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.3,84003,84000
Deck
Reinforced Concrete Decksq. ft.26,880026,88000
Substructure
Reinforced Concrete Abutmentlinear ft.8989000
Prestressed Concrete Pileeach6060000
Reinforced Concrete Pier Caplinear ft.48703481390
Joints
Pourable Jointlinear ft.5600560
Open Jointlinear ft.420420000
Assembly without Seal Jointlinear ft.5656000
Bearings
Elastomeric Bearingeach128128000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,9241,924000