US Bridges

Lafosse RD over Coulee

Good

Acadia Parish, Louisiana · 0.3 MI S. of LA 92 · Structure no. 030130094923431

Built
2001
24 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete
Length
78 ft
4 main spans
Daily traffic
96
2021 count
Owner
County
County Highway Agency

About this bridge

Lafosse RD over Coulee is a concrete slab carrying Lafosse RD over Coulee in Acadia Parish, Louisiana. It was built in 2001, so it is 24 years old, younger 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 96 vehicles a day, projected to reach 105 by 2041. The structure is 78 ft (23.8 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLafosse RD
CrossesCoulee
Location0.3 MI S. of LA 92
RouteCounty Highway 0
Coordinates30.15893, -92.57474
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.2 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2021)
Projected traffic105 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lafosse RD over Coulee built?

It was built in 2001, making it 24 years old in 2025.

What condition is Lafosse RD over Coulee 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 July 2024.

How much traffic does Lafosse RD over Coulee carry?

About 96 vehicles per day (2021 count).

How long is Lafosse RD over Coulee?

The structure is 78 ft (23.8 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Lafosse RD over Coulee?

It is owned by the County Highway Agency.