US Bridges

LA1138-3 over Kayouche Coulee

Fair

Calcasieu Parish, Louisiana · 0.50 MI E of LA 14 · Structure no. 071008103200511

Built
1959
66 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
180 ft
9 main spans
Daily traffic
5,799
2023 count
Owner
State
State Highway Agency

About this bridge

LA1138-3 over Kayouche Coulee is a concrete slab carrying LA1138-3 over Kayouche Coulee in Calcasieu Parish, Louisiana. It was built in 1959, so it is 66 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 5 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 5,799 vehicles a day, roughly 10% of them trucks, projected to reach 6,378 by 2043. The structure is 180 ft (54.9 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLA1138-3
CrossesKayouche Coulee
Location0.50 MI E of LA 14
RouteState Highway 1138
CountyCalcasieu Parish
StateLouisiana
Coordinates30.2166, -93.17153
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span20 ft (6.1 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,799 (2023)
Projected traffic6,378 by 2043
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$819,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1138-3 over Kayouche Coulee built?

It was built in 1959, making it 66 years old in 2025.

What condition is LA1138-3 over Kayouche Coulee 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 May 2024.

How much traffic does LA1138-3 over Kayouche Coulee carry?

About 5,799 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is LA1138-3 over Kayouche Coulee?

The structure is 180 ft (54.9 m) long with a longest span of 20 ft (6.1 m) and a deck 36 ft wide.

Who owns LA1138-3 over Kayouche Coulee?

It is owned by the State Highway Agency.