Structure 40900450102851 · Caddo County, LA

La0001 over Mccain Creek Tributary

Carries La0001 over Mccain Creek Tributary, 2.85m NW La1/us71 Intr.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT47 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 47 ft across with 5 openings. 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, so those are drawn as typical for a culvert.

Built199333 years old
Length46.9 ft14.3 m
Daily traffic21,933counted 2021
Last inspectedJanuary 2025every 48 months

Location

StateLouisiana
CountyCaddo
Location2.85m NW La1/us71 Intr
CarriesLa0001
CrossesMccain Creek Tributary
Coordinates32.60015, -93.83990

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length46.9 ft (14.3 m)
Max Span6.9 ft (2.1 m)
Deck Width120.1 ft (36.6 m)
Deck Area523.4 sq m
Main Spans5
Year Built1993

Traffic

Avg Daily Traffic21,933 (2021)
Truck Traffic8%
Lanes On Bridge5

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number040900450102851

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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