US Bridges

Louisiana Ave. over Coulee

Good

Lafayette Parish, Louisiana · 1.93 MI N of LA 94 · Structure no. 032830157915982

Built
2004
21 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
150 ft
3 main spans
Daily traffic
4,675
2020 count
Owner
County
County Highway Agency

About this bridge

Louisiana Ave. over Coulee is a prestressed concrete continuous stringer/multi-beam or girder carrying Louisiana Ave. over Coulee in Lafayette Parish, Louisiana. It was built in 2004, so it is 21 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 4,675 vehicles a day, projected to reach 5,142 by 2040. The structure is 150 ft (45.7 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLouisiana Ave.
CrossesCoulee
Location1.93 MI N of LA 94
RouteCounty Highway 0
CountyLafayette Parish
StateLouisiana
Coordinates30.26093, -91.99581
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span50 ft (15.2 m)
Deck width40 ft (12.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,675 (2020)
Projected traffic5,142 by 2040
Trucks—
Lanes on structure2
Traffic directionOne-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 2004, making it 21 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 4,675 vehicles per day (2020 count).

How long is Louisiana Ave. over Coulee?

The structure is 150 ft (45.7 m) long with a longest span of 50 ft (15.2 m) and a deck 40 ft wide.

Who owns Louisiana Ave. over Coulee?

It is owned by the County Highway Agency.