US Bridges

Willow ST over Coulee

Good

Lafayette Parish, Louisiana · 0.4 MI East of LA 3184 · Structure no. 032800000030513

Built
1981
44 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
4,115
2022 count
Owner
County
County Highway Agency

About this bridge

Willow ST over Coulee is a concrete culvert carrying Willow ST over Coulee in Lafayette Parish, Louisiana. It was built in 1981, so it is 44 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,115 vehicles a day, projected to reach 4,526 by 2042. The structure is 35 ft (10.7 m) long and 83 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWillow ST
CrossesCoulee
Location0.4 MI East of LA 3184
RouteCounty Highway 0
Coordinates30.24363, -92.06012
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 spans2
Design loadHS 20 + Mod
Structure length35 ft (10.7 m)
Longest span17 ft (5.2 m)
Deck width83 ft (25.3 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,115 (2022)
Projected traffic4,526 by 2042
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 Willow ST over Coulee built?

It was built in 1981, making it 44 years old in 2025.

What condition is Willow ST over Coulee in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Willow ST over Coulee carry?

About 4,115 vehicles per day (2022 count).

How long is Willow ST over Coulee?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.2 m) and a deck 83 ft wide.

Who owns Willow ST over Coulee?

It is owned by the County Highway Agency.