US Bridges

LA0115 over Coulee Des Grues

Fair

Avoyelles Parish, Louisiana · 1.18 Miles South of LA 1 · Structure no. 080500330116011

Built
1961
64 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
142 ft
7 main spans
Daily traffic
5,309
2021 count
Owner
State
State Highway Agency

About this bridge

LA0115 over Coulee Des Grues is a concrete slab carrying LA0115 over Coulee Des Grues in Avoyelles 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,309 vehicles a day, roughly 4% of them trucks, projected to reach 5,839 by 2041. The structure is 142 ft (43.3 m) long and 33 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesLA0115
CrossesCoulee Des Grues
Location1.18 Miles South of LA 1
RouteState Highway 115
Coordinates31.10874, -92.0824
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 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 adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating46 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,309 (2021)
Projected traffic5,839 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$670,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0115 over Coulee Des Grues built?

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

What condition is LA0115 over Coulee Des Grues in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does LA0115 over Coulee Des Grues carry?

About 5,309 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is LA0115 over Coulee Des Grues?

The structure is 142 ft (43.3 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0115 over Coulee Des Grues?

It is owned by the State Highway Agency.