US Bridges

LA0308 over Belle Terre Canal

PoorPosted for load

Ascension Parish, Louisiana · 0.5 Mi. S. of LA 943 · Structure no. 610304070900461

Built
1963
62 years old
Condition
Poor
inspected January 2024
Type
Slab
Concrete
Length
59 ft
3 main spans
Daily traffic
1,349
2021 count
Owner
State
State Highway Agency

About this bridge

LA0308 over Belle Terre Canal is a concrete slab carrying LA0308 over Belle Terre Canal in Ascension Parish, Louisiana. It was built in 1963, so it is 62 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,349 vehicles a day, roughly 11% of them trucks, projected to reach 1,483 by 2041. The structure is 59 ft (18 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA0308
CrossesBelle Terre Canal
Location0.5 Mi. S. of LA 943
RouteState Highway 308
Coordinates30.07991, -91.02646
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating18.5 US tons
Inventory rating14.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length59 ft (18 m)
Longest span19 ft (5.8 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,349 (2021)
Projected traffic1,483 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$319,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0308 over Belle Terre Canal built?

It was built in 1963, making it 62 years old in 2025.

What condition is LA0308 over Belle Terre Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does LA0308 over Belle Terre Canal carry?

About 1,349 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0308 over Belle Terre Canal?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 29 ft wide.

Who owns LA0308 over Belle Terre Canal?

It is owned by the State Highway Agency.