US Bridges

LA0092 over Coulee Granges

Good

Vermilion Parish, Louisiana · 2.43 MI E. of LA 343 · Structure no. 035702130306431

Built
1961
64 years old
Condition
Good
inspected December 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
5,170
2021 count
Owner
State
State Highway Agency

About this bridge

LA0092 over Coulee Granges is a concrete slab carrying LA0092 over Coulee Granges in Vermilion Parish, Louisiana. It was built in 1961, so it is 64 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,170 vehicles a day, roughly 9% of them trucks, projected to reach 5,687 by 2041. The structure is 100 ft (30.5 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLA0092
CrossesCoulee Granges
Location2.43 MI E. of LA 343
RouteState Highway 92
Coordinates30.10858, -92.13605
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,170 (2021)
Projected traffic5,687 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$498,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0092 over Coulee Granges built?

It was built in 1961, making it 64 years old in 2025.

What condition is LA0092 over Coulee Granges in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does LA0092 over Coulee Granges carry?

About 5,170 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0092 over Coulee Granges?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns LA0092 over Coulee Granges?

It is owned by the State Highway Agency.