Structure 581301430402801 · Catahoula County, LA

La0124 over Diversion Canal

Carries La0124 over Diversion Canal, 2.8 Mi North Of La 3102.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT542 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

542 ft end to end, longest span 60 ft: about 1.5 football fields. Lengths and the semi-truck 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built196759 years old
Length542.0 ft165.2 m
Daily traffic410counted 2021
Last inspectedApril 2024every 24 months

Location

StateLouisiana
CountyCatahoula
Location2.8 Mi North Of La 3102
CarriesLa0124
CrossesDiversion Canal
Coordinates31.36284, -91.86360

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length542.0 ft (165.2 m)
Max Span60.0 ft (18.3 m)
Deck Width29.2 ft (8.9 m)
Deck Area1470.3 sq m
Main Spans9
Year Built1967

Traffic

Avg Daily Traffic410 (2021)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number581301430402801

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.

Nearby Bridges