US Bridges

LA0366 over Sandy Creek

PoorPosted for load

Grant Parish, Louisiana · .53 MI North of LA 8 · Structure no. 082200403200531

Built
1955
70 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
170 ft
9 main spans
Daily traffic
368
2021 count
Owner
State
State Highway Agency

About this bridge

LA0366 over Sandy Creek is a wood or timber stringer/multi-beam or girder carrying LA0366 over Sandy Creek in Grant Parish, Louisiana. It was built in 1955, so it is 70 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 368 vehicles a day, roughly 14% of them trucks, projected to reach 404 by 2041. The structure is 170 ft (51.8 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA0366
CrossesSandy Creek
Location.53 MI North of LA 8
RouteState Highway 366
Coordinates31.52274, -92.3997
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating31 US tons
Inventory rating22 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans9
Design loadH 10
Structure length170 ft (51.8 m)
Longest span19 ft (5.8 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic368 (2021)
Projected traffic404 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$787,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0366 over Sandy Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is LA0366 over Sandy Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does LA0366 over Sandy Creek carry?

About 368 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0366 over Sandy Creek?

The structure is 170 ft (51.8 m) long with a longest span of 19 ft (5.8 m) and a deck 20 ft wide.

Who owns LA0366 over Sandy Creek?

It is owned by the State Highway Agency.