US Bridges

LA0409 over Little Sandy Creek

PoorPosted for load

East Baton Rouge Parish, Louisiana · 1.6 MI N of LA 64 · Structure no. 611708170401581

Built
1955
70 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
153 ft
8 main spans
Daily traffic
3,092
2021 count
Owner
State
State Highway Agency

About this bridge

LA0409 over Little Sandy Creek is a wood or timber stringer/multi-beam or girder carrying LA0409 over Little Sandy Creek in East Baton Rouge 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 4 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 3,092 vehicles a day, roughly 10% of them trucks, projected to reach 3,401 by 2041. The structure is 153 ft (46.6 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesLA0409
CrossesLittle Sandy Creek
Location1.6 MI N of LA 64
RouteState Highway 409
Coordinates30.62678, -90.98955
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating3 US tons
Inventory rating0 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans8
Design loadH 15
Structure length153 ft (46.6 m)
Longest span19 ft (5.8 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,092 (2021)
Projected traffic3,401 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$712,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0409 over Little Sandy Creek built?

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

What condition is LA0409 over Little 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 January 2024.

How much traffic does LA0409 over Little Sandy Creek carry?

About 3,092 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA0409 over Little Sandy Creek?

The structure is 153 ft (46.6 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns LA0409 over Little Sandy Creek?

It is owned by the State Highway Agency.