US Bridges

Louisiana Ave. over Coulee

Good

Lafayette Parish, Louisiana · .3 MI N of I-10 · Structure no. 032800000030384

Built
2010
15 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
48 ft
1 main span
Daily traffic
1,967
2020 count
Owner
County
County Highway Agency

About this bridge

Louisiana Ave. over Coulee is a concrete culvert carrying Louisiana Ave. over Coulee in Lafayette Parish, Louisiana. It was built in 2010, so it is 15 years old, younger 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,967 vehicles a day, projected to reach 2,163 by 2040. The structure is 48 ft (14.6 m) long and 116 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLouisiana Ave.
CrossesCoulee
Location.3 MI N of I-10
RouteCounty Highway 0
CountyLafayette Parish
StateLouisiana
Coordinates30.27386, -91.99262
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span48 ft (14.6 m)
Deck width116 ft (35.4 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,967 (2020)
Projected traffic2,163 by 2040
Trucks—
Lanes on structure4
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Louisiana Ave. over Coulee built?

It was built in 2010, making it 15 years old in 2025.

What condition is Louisiana Ave. 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 Louisiana Ave. over Coulee carry?

About 1,967 vehicles per day (2020 count).

How long is Louisiana Ave. over Coulee?

The structure is 48 ft (14.6 m) long with a longest span of 48 ft (14.6 m) and a deck 116 ft wide.

Who owns Louisiana Ave. over Coulee?

It is owned by the County Highway Agency.