US Bridges

LA0365 over Grand Coulee Ditch

Fair

Acadia Parish, Louisiana · 0.31 MI E of LA 370 · Structure no. 030108012805191

Built
1979
46 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
568
2021 count
Owner
State
State Highway Agency

About this bridge

LA0365 over Grand Coulee Ditch is a concrete slab carrying LA0365 over Grand Coulee Ditch in Acadia Parish, Louisiana. It was built in 1979, so it is 46 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.

It carries about 568 vehicles a day, roughly 15% of them trucks, projected to reach 624 by 2041. The structure is 76 ft (23.2 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLA0365
CrossesGrand Coulee Ditch
Location0.31 MI E of LA 370
RouteState Highway 365
CountyAcadia Parish
StateLouisiana
Coordinates30.34883, -92.42595
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic568 (2021)
Projected traffic624 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 LA0365 over Grand Coulee Ditch built?

It was built in 1979, making it 46 years old in 2025.

What condition is LA0365 over Grand Coulee 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 March 2024.

How much traffic does LA0365 over Grand Coulee Ditch carry?

About 568 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0365 over Grand Coulee Ditch?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns LA0365 over Grand Coulee Ditch?

It is owned by the State Highway Agency.