US Bridges

Debutante Rd. over Coulee

Fair

Lafayette Parish, Louisiana · 0.30 MI SE of I-49 · Structure no. 032830200920251

Built
1986
39 years old
Condition
Fair
inspected January 2024
Type
Culvert
Steel
Length
25 ft
3 main spans
Daily traffic
520
2020 count
Owner
County
County Highway Agency

About this bridge

Debutante Rd. over Coulee is a steel culvert carrying Debutante Rd. over Coulee in Lafayette Parish, Louisiana. It was built in 1986, so it is 39 years old, younger 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 520 vehicles a day, projected to reach 572 by 2040. The structure is 25 ft (7.6 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDebutante Rd.
CrossesCoulee
Location0.30 MI SE of I-49
RouteCounty Highway 0
CountyLafayette Parish
StateLouisiana
Coordinates30.33401, -92.04133
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating85 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span3 ft (0.9 m)
Deck width47 ft (14.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2020)
Projected traffic572 by 2040
Trucks—
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

OwnerCounty Highway Agency
Maintained byCounty 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 Debutante Rd. over Coulee built?

It was built in 1986, making it 39 years old in 2025.

What condition is Debutante 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 Debutante Rd. over Coulee carry?

About 520 vehicles per day (2020 count).

How long is Debutante Rd. over Coulee?

The structure is 25 ft (7.6 m) long with a longest span of 3 ft (0.9 m) and a deck 47 ft wide.

Who owns Debutante Rd. over Coulee?

It is owned by the County Highway Agency.