US Bridges

LA1115 over Lyons Point Gully

Fair

Acadia Parish, Louisiana · 2.62 MI East of LA 91 · Structure no. 030108012002621

Built
1962
63 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
580 ft
29 main spans
Daily traffic
377
2021 count
Owner
State
State Highway Agency

About this bridge

LA1115 over Lyons Point Gully is a concrete slab carrying LA1115 over Lyons Point Gully in Acadia Parish, Louisiana. It was built in 1962, so it is 63 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 377 vehicles a day, roughly 12% of them trucks, projected to reach 414 by 2041. The structure is 580 ft (176.8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLA1115
CrossesLyons Point Gully
Location2.62 MI East of LA 91
RouteState Highway 1115
CountyAcadia Parish
StateLouisiana
Coordinates30.09743, -92.4636
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating56 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans29
Design loadHS 20
Structure length580 ft (176.8 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 traffic377 (2021)
Projected traffic414 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1115 over Lyons Point Gully built?

It was built in 1962, making it 63 years old in 2025.

What condition is LA1115 over Lyons Point Gully 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 2024.

How much traffic does LA1115 over Lyons Point Gully carry?

About 377 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA1115 over Lyons Point Gully?

The structure is 580 ft (176.8 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns LA1115 over Lyons Point Gully?

It is owned by the State Highway Agency.