Structure 83500880105081 · Natchitoches County, LA

La0153 over Drain

Carries La0153 over Drain, 5.08 Mi. N Of Int La9.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
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 FT57 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 4/9 · sets the rating

57 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.

Built197452 years old
Length57.1 ft17.4 m
Daily traffic609counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateLouisiana
CountyNatchitoches
Location5.08 Mi. N Of Int La9
CarriesLa0153
CrossesDrain
Coordinates32.03292, -93.09580

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length57.1 ft (17.4 m)
Max Span19.0 ft (5.8 m)
Deck Width29.9 ft (9.1 m)
Deck Area158.3 sq m
Main Spans3
Year Built1974

Traffic

Avg Daily Traffic609 (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 Number083500880105081

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