Structure 83500530414631 · Natchitoches County, LA

La0001-x over Cane River

Carries La0001-x over Cane River, .01 Mi. S Of Int La1224.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure and Substructure at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructuresets the rating3/9 · Serious
Substructuresets the rating3/9 · Serious
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT441 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9Superstructure 3/9Substructure 3/9

441 ft end to end, longest span 40 ft: about 6 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 tee-beam bridge.

Built193690 years old
Length440.9 ft134.4 m
Daily traffic6,362counted 2021
Last inspectedMay 2024every 12 months

Location

StateLouisiana
CountyNatchitoches
Location.01 Mi. S Of Int La1224
CarriesLa0001-x
CrossesCane River
Coordinates31.76072, -93.08460

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length440.9 ft (134.4 m)
Max Span40.0 ft (12.2 m)
Deck Width37.1 ft (11.3 m)
Deck Area1518.7 sq m
Main Spans11
Year Built1936

Traffic

Avg Daily Traffic6,362 (2021)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number083500530414631

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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