US Bridges

LA0385 over Bayou

Fair

Calcasieu Parish, Louisiana · 2.1 Mi. N of LA 3092 · Structure no. 071001950308051

Built
1973
52 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
39 ft
5 main spans
Daily traffic
10,434
2021 count
Owner
State
State Highway Agency

About this bridge

LA0385 over Bayou is a concrete culvert carrying LA0385 over Bayou in Calcasieu Parish, Louisiana. It was built in 1973, so it is 52 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 10,434 vehicles a day, roughly 17% of them trucks, projected to reach 11,477 by 2041. The structure is 39 ft (11.9 m) long and 100 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLA0385
CrossesBayou
Location2.1 Mi. N of LA 3092
RouteState Highway 385
Coordinates30.16913, -93.21384
Functional classUrban Other Principal 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span7 ft (2.1 m)
Deck width100 ft (30.4 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,434 (2021)
Projected traffic11,477 by 2041
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 LA0385 over Bayou built?

It was built in 1973, making it 52 years old in 2025.

What condition is LA0385 over 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 January 2023.

How much traffic does LA0385 over Bayou carry?

About 10,434 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is LA0385 over Bayou?

The structure is 39 ft (11.9 m) long with a longest span of 7 ft (2.1 m) and a deck 100 ft wide.

Who owns LA0385 over Bayou?

It is owned by the State Highway Agency.