US Bridges

LA0115 over Elm Bayou

Fair

Evangeline Parish, Louisiana · .01 MI SE of LA 181 · Structure no. 032008203900011

Built
1957
68 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
711
2021 count
Owner
State
State Highway Agency

About this bridge

LA0115 over Elm Bayou is a concrete slab carrying LA0115 over Elm Bayou in Evangeline Parish, Louisiana. It was built in 1957, so it is 68 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 711 vehicles a day, roughly 12% of them trucks, projected to reach 782 by 2041. The structure is 60 ft (18.3 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLA0115
CrossesElm Bayou
Location.01 MI SE of LA 181
RouteState Highway 115
Coordinates30.95596, -92.3148
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic711 (2021)
Projected traffic782 by 2041
Trucks12%
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

OwnerState Highway Agency
Maintained byState 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 LA0115 over Elm Bayou built?

It was built in 1957, making it 68 years old in 2025.

What condition is LA0115 over Elm Bayou 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 November 2023.

How much traffic does LA0115 over Elm Bayou carry?

About 711 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0115 over Elm Bayou?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns LA0115 over Elm Bayou?

It is owned by the State Highway Agency.