US Bridges

LA3020 over Kayouche Coulee

Fair

Calcasieu Parish, Louisiana · 2.7 Mi. W. of LA 397 · Structure no. 071008100702611

Built
1959
66 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete
Length
200 ft
10 main spans
Daily traffic
3,532
2021 count
Owner
State
State Highway Agency

About this bridge

LA3020 over Kayouche Coulee is a concrete slab carrying LA3020 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 3,532 vehicles a day, roughly 6% of them trucks, projected to reach 3,885 by 2041. The structure is 200 ft (61 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLA3020
CrossesKayouche Coulee
Location2.7 Mi. W. of LA 397
RouteState Highway 3020
CountyCalcasieu Parish
StateLouisiana
Coordinates30.24234, -93.17122
Functional classUrban 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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadH 15
Structure length200 ft (61 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,532 (2021)
Projected traffic3,885 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$897,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA3020 over Kayouche Coulee built?

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

What condition is LA3020 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 January 2023.

How much traffic does LA3020 over Kayouche Coulee carry?

About 3,532 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is LA3020 over Kayouche Coulee?

The structure is 200 ft (61 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns LA3020 over Kayouche Coulee?

It is owned by the State Highway Agency.