Structure 83500920109711 · Natchitoches County, LA

La0156 over Creek

Carries La0156 over Creek, 9.7 Mi. E Of Int La9.

Overall conditionPoor

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

How ratings work
Deck7/9 · Good
Superstructure6/9 · Satisfactory
Substructuresets the rating3/9 · Serious
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT78 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9Substructure 3/9 · sets the rating

78 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 multi-beam bridge.

Built1926100 years old
Length78.1 ft23.8 m
Daily traffic525counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateLouisiana
CountyNatchitoches
Location9.7 Mi. E Of Int La9
CarriesLa0156
CrossesCreek
Coordinates32.01148, -92.90940

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length78.1 ft (23.8 m)
Max Span19.0 ft (5.8 m)
Deck Width20.0 ft (6.1 m)
Deck Area145.2 sq m
Main Spans4
Year Built1926

Traffic

Avg Daily Traffic525 (2021)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number083500920109711

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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