Structure 22600000020409 · Jefferson County, LA

La3134 over Drain Ditch

Carries La3134 over Drain Ditch, 1 Mile North Of Int Ww.

Overall conditionFair

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

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

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

A culvert 24 ft across with 4 openings. 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.

Built198541 years old
Length24.0 ft7.3 m
Daily traffic5,599counted 2021
Last inspectedJune 2024every 24 months

Location

StateLouisiana
CountyJefferson
Location1 Mile North Of Int Ww
CarriesLa3134
CrossesDrain Ditch
Coordinates29.76997, -90.10070

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length24.0 ft (7.3 m)
Max Span4.9 ft (1.5 m)
Deck Width231.0 ft (70.4 m)
Deck Area513.9 sq m
Main Spans4
Year Built1985

Traffic

Avg Daily Traffic5,599 (2021)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number022600000020409

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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