US Bridges

Lajaunie RD over Coulee

FairPosted for load

Lafayette Parish, Louisiana · .75 MI SW of LA 98 · Structure no. 032830169915841

Built
1978
47 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
58 ft
3 main spans
Daily traffic
1,160
2020 count
Owner
County
County Highway Agency

About this bridge

Lajaunie RD over Coulee is a concrete slab carrying Lajaunie RD over Coulee in Lafayette Parish, Louisiana. It was built in 1978, so it is 47 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. Its operating status is: posted for load restriction.

It carries about 1,160 vehicles a day, projected to reach 1,276 by 2040. The structure is 58 ft (17.7 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLajaunie RD
CrossesCoulee
Location.75 MI SW of LA 98
RouteCounty Highway 0
CountyLafayette Parish
StateLouisiana
Coordinates30.28407, -91.97273
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating24.3 US tons
Inventory rating18.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,160 (2020)
Projected traffic1,276 by 2040
Trucks—
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

OwnerCounty Highway Agency
Maintained byCounty 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$220,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Lajaunie RD over Coulee built?

It was built in 1978, making it 47 years old in 2025.

What condition is Lajaunie RD over 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 2024.

How much traffic does Lajaunie RD over Coulee carry?

About 1,160 vehicles per day (2020 count).

How long is Lajaunie RD over Coulee?

The structure is 58 ft (17.7 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns Lajaunie RD over Coulee?

It is owned by the County Highway Agency.