Structure 70201880306821 · Allen County, LA

La0112 over Ten Mile Creek

Carries La0112 over Ten Mile Creek, 1.1 Mi. E Of La377.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT540 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

540 ft end to end, longest span 20 ft: about 1.5 football fields. 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.

Built196066 years old
Length540.0 ft164.6 m
Daily traffic1,138counted 2022
Last inspectedMarch 2023every 24 months

Location

StateLouisiana
CountyAllen
Location1.1 Mi. E Of La377
CarriesLa0112
CrossesTen Mile Creek
Coordinates30.83672, -92.87480

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length540.0 ft (164.6 m)
Max Span20.0 ft (6.1 m)
Deck Width29.2 ft (8.9 m)
Deck Area1464.9 sq m
Main Spans27
Year Built1960

Traffic

Avg Daily Traffic1,138 (2022)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number070201880306821

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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