Structure 80500000080673 · Avoyelles County, LA

Grassy Lake RD over Fools Bay

Carries Grassy Lake RD over Fools Bay, 10 Mi E Of La 451.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT150 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

150 ft end to end, longest span 25 ft: about 2 semi-trucks nose to tail. 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 slab bridge.

Built20179 years old
Length149.9 ft45.7 m
Daily traffic20counted 2020
Last inspectedFebruary 2023every 24 months

Location

StateLouisiana
CountyAvoyelles
Location10 Mi E Of La 451
CarriesGrassy Lake RD
CrossesFools Bay
Coordinates31.16366, -91.73485

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length149.9 ft (45.7 m)
Max Span24.9 ft (7.6 m)
Deck Width14.8 ft (4.5 m)
Deck Area205.7 sq m
Main Spans6
Year Built2017

Traffic

Avg Daily Traffic20 (2020)
Lanes On Bridge1

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Park/Forest Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number080500000080673

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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