US Bridges

LA0368 over Grand Coulee Dtch

Fair

Acadia Parish, Louisiana · 0.6 MI E of LA 370 · Structure no. 030103870105111

Built
1962
63 years old
Condition
Fair
inspected February 2023
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
105
2021 count
Owner
State
State Highway Agency

About this bridge

LA0368 over Grand Coulee Dtch is a steel culvert carrying LA0368 over Grand Coulee Dtch in Acadia Parish, Louisiana. It was built in 1962, so it is 63 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 6 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 105 vehicles a day, roughly 15% of them trucks, projected to reach 115 by 2041. The structure is 24 ft (7.3 m) long and 49 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLA0368
CrossesGrand Coulee Dtch
Location0.6 MI E of LA 370
RouteState Highway 368
CountyAcadia Parish
StateLouisiana
Coordinates30.3926, -92.42122
Functional classRural 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 15
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width49 ft (14.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic105 (2021)
Projected traffic115 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 LA0368 over Grand Coulee Dtch built?

It was built in 1962, making it 63 years old in 2025.

What condition is LA0368 over Grand Coulee Dtch 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 February 2023.

How much traffic does LA0368 over Grand Coulee Dtch carry?

About 105 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0368 over Grand Coulee Dtch?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m) and a deck 49 ft wide.

Who owns LA0368 over Grand Coulee Dtch?

It is owned by the State Highway Agency.