US Bridges

W. Northern RD over Crowley Drainage Ditch

FairPosted for load

Acadia Parish, Louisiana · 1.4 Mi. W. of LA 13 · Structure no. 030130128922381

Built
1982
43 years old, rebuilt 2017
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
2,880
2020 count
Owner
County
County Highway Agency

About this bridge

W. Northern RD over Crowley Drainage Ditch is a concrete slab carrying W. Northern RD over Crowley Drainage Ditch in Acadia Parish, Louisiana. It was built in 1982 and reconstructed in 2017, so it is 43 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 6 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 2,880 vehicles a day, projected to reach 3,168 by 2040. The structure is 95 ft (29 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesW. Northern RD
CrossesCrowley Drainage Ditch
Location1.4 Mi. W. of LA 13
RouteCounty Highway 0
Coordinates30.21325, -92.39904
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.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 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 rating25 US tons
Inventory rating19.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length95 ft (29 m)
Longest span19 ft (5.8 m)
Deck width36 ft (11 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,880 (2020)
Projected traffic3,168 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

OwnerCounty Highway Agency
Maintained byCounty 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$334,000
NavigationNo navigation control on waterway

Frequently asked questions

When was W. Northern RD over Crowley Drainage Ditch built?

It was built in 1982, making it 43 years old in 2025. It was reconstructed in 2017.

What condition is W. Northern RD over Crowley Drainage Ditch 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 W. Northern RD over Crowley Drainage Ditch carry?

About 2,880 vehicles per day (2020 count).

How long is W. Northern RD over Crowley Drainage Ditch?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 36 ft wide.

Who owns W. Northern RD over Crowley Drainage Ditch?

It is owned by the County Highway Agency.