Structure 610402320116621 · Assumption County, LA

La0070 over Belle River

Carries La0070 over Belle River, 0.01 Mi. S. Of La 1016-2.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT480 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

480 ft end to end: about 7 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 swing bridge (drawn closed).

Built200917 years old
Length480.0 ft146.3 m
Daily traffic8,005counted 2021
Last inspectedNovember 2023every 24 months

Location

StateLouisiana
CountyAssumption
Location0.01 Mi. S. Of La 1016-2
CarriesLa0070
CrossesBelle River
Coordinates29.90948, -91.21554

Physical Characteristics

MaterialSteel
DesignMovable - Swing
Total Length480.0 ft (146.3 m)
Max Span134.8 ft (41.1 m)
Deck Width31.5 ft (9.6 m)
Deck Area1404.5 sq m
Main Spans1
Year Built2009

Traffic

Avg Daily Traffic8,005 (2021)
Truck Traffic18%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number610402320116621

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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