Structure 610300000610365 · Ascension County, LA

Lemannville Cutoff over Verret Bayou

Carries Lemannville Cutoff over Verret Bayou, 1.47 Mi SW Of La 18.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
25 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 25 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built20179 years old
Length24.9 ft7.6 m
Daily traffic50counted 2019
Last inspectedJanuary 2023every 24 months

Location

StateLouisiana
CountyAscension
Location1.47 Mi SW Of La 18
CarriesLemannville Cutoff
CrossesVerret Bayou
Coordinates30.09811, -90.93881

Physical Characteristics

MaterialAluminum/Wrought Iron/Cast Iron
DesignCulvert
Total Length24.9 ft (7.6 m)
Max Span24.9 ft (7.6 m)
Deck Width42.0 ft (12.8 m)
Deck Area97.3 sq m
Main Spans1
Year Built2017

Traffic

Avg Daily Traffic50 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number610300000610365

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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