North Ave. D over Coulee

FairPosted for load

Acadia Parish, Louisiana · 1.2 Mi. N. of US 90 · Structure no. 030130135922331

Built: 1974; 51 years old
Condition: Fair; inspected July 2024
Type: Slab; Concrete
Length: 57 ft; 3 main spans
Daily traffic: 960; 2020 count
Owner: City; City or Municipal Highway Agency

About this bridge

North Ave. D over Coulee is a concrete slab carrying North Ave. D over Coulee in Acadia Parish, Louisiana. It was built in 1974, so it is 51 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 960 vehicles a day, projected to reach 1,056 by 2040. The structure is 57 ft (17.4 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNorth Ave. D

CrossesCoulee

Location1.2 Mi. N. of US 90

RouteCounty Highway 0

CountyAcadia Parish

StateLouisiana

Coordinates30.22582, -92.38399

Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionJuly 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 geometry7: Better than present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is

Operating rating23.9 US tons

Inventory rating18.5 US tons

Structure

Structure typeSlab

MaterialConcrete

DeckConcrete, precast panels

Main spans3

Design loadHS 20

Structure length57 ft (17.4 m)

Longest span19 ft (5.8 m)

Deck width43 ft (13.1 m)

Roadway width36 ft (11.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic960 (2020)

Projected traffic1,056 by 2040

Trucks—

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway and pedestrian

CrossesWaterway

Detour if closed1.2 mi (2 km)

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency

Maintained byCity or Municipal 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$283,000

NavigationNo navigation control on waterway

Frequently asked questions

When was North Ave. D over Coulee built?

It was built in 1974, making it 51 years old in 2025.

What condition is North Ave. D 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 July 2024.

How much traffic does North Ave. D over Coulee carry?

About 960 vehicles per day (2020 count).

How long is North Ave. D over Coulee?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 43 ft wide.

Who owns North Ave. D over Coulee?

It is owned by the City or Municipal Highway Agency.