Structure 40900450102421 · Caddo County, LA

La0001 over Mcain Creek

Carries La0001 over Mcain Creek, 2.42m NW Of La1/us71 Intr.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT160 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

160 ft end to end, longest span 20 ft: about 2 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 slab bridge.

Built199333 years old
Length160.1 ft48.8 m
Daily traffic21,933counted 2021
Last inspectedJanuary 2025every 48 months

Location

StateLouisiana
CountyCaddo
Location2.42m NW Of La1/us71 Intr
CarriesLa0001
CrossesMcain Creek
Coordinates32.59705, -93.83354

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length160.1 ft (48.8 m)
Max Span20.0 ft (6.1 m)
Deck Width86.0 ft (26.2 m)
Deck Area1278.6 sq m
Main Spans8
Year Built1993

Traffic

Avg Daily Traffic21,933 (2021)
Truck Traffic8%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number040900450102421

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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