Structure 623202600207511 · Livingston County, LA

La0016 over Amite River-french Smen

Carries La0016 over Amite River-french Smen, 1.6 M S Of La 444.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT931 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

931 ft end to end: about 2.6 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 swing bridge (drawn closed).

Built196066 years old
Length931.1 ft283.8 m
Daily traffic4,313counted 2021
Last inspectedDecember 2024every 24 months

Location

StateLouisiana
CountyLivingston
Location1.6 M S Of La 444
CarriesLa0016
CrossesAmite River-french Smen
Coordinates30.27640, -90.78010

Physical Characteristics

MaterialSteel
DesignMovable - Swing
Total Length931.1 ft (283.8 m)
Max Span204.1 ft (62.2 m)
Deck Width27.2 ft (8.3 m)
Deck Area2355.5 sq m
Main Spans1
Year Built1960

Traffic

Avg Daily Traffic4,313 (2021)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number623202600207511

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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