Structure 70600000070204 · Beauregard County, LA

Us0171 over Bayou

Carries Us0171 over Bayou, 1.65 Miles North Of Beaur.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT35 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 35 ft across with 4 openings. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.

Built200719 years old
Length35.1 ft10.7 m
Daily traffic12,466counted 2021
Last inspectedJuly 2023every 24 months

Location

StateLouisiana
CountyBeauregard
Location1.65 Miles North Of Beaur
CarriesUs0171
CrossesBayou
Coordinates30.42592, -93.23260

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length35.1 ft (10.7 m)
Max Span7.9 ft (2.4 m)
Deck Width201.1 ft (61.3 m)
Deck Area655.9 sq m
Main Spans4
Year Built2007

Traffic

Avg Daily Traffic12,466 (2021)
Truck Traffic16%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number070600000070204

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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