Structure 80601000002127 · Grant County, LA

Fdr 120 over S.fork Saddle Bayou

Carries Fdr 120 over S.fork Saddle Bayou, No Data Entered.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT38 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 4/9 · sets the rating

38 ft end to end, longest span 19 ft. 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 or the layout of the shorter spans, so those are drawn as typical for a channel-beam bridge.

Built198244 years old
Length38.1 ft11.6 m
Daily traffic17counted 1979
Last inspectedSeptember 2024every 24 months

Location

StateLouisiana
CountyGrant
LocationNo Data Entered
CarriesFdr 120
CrossesS.fork Saddle Bayou
Coordinates31.69407, -92.57757

Physical Characteristics

MaterialPrestressed Concrete
DesignChannel Beam
Total Length38.1 ft (11.6 m)
Max Span19.0 ft (5.8 m)
Deck Width16.7 ft (5.1 m)
Deck Area59.2 sq m
Main Spans2
Year Built1982

Traffic

Avg Daily Traffic17 (1979)
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number080601000002127

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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