US Bridges

LA0409 over Drain No Name

Good

East Baton Rouge Parish, Louisiana · 0.5 M N of LA 37&LA 409 · Structure no. 611708170400191

Built
1955
70 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
3,092
2021 count
Owner
State
State Highway Agency

About this bridge

LA0409 over Drain No Name is a concrete culvert carrying LA0409 over Drain No Name 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,092 vehicles a day, roughly 10% of them trucks, projected to reach 3,401 by 2041. The structure is 27 ft (8.2 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA0409
CrossesDrain No Name
Location0.5 M N of LA 37&LA 409
RouteState Highway 409
Coordinates30.6078, -90.99667
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width50 ft (15.2 m)
Roadway width20 ft (6.1 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 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0409 over Drain No Name built?

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

What condition is LA0409 over Drain No Name in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does LA0409 over Drain No Name carry?

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

How long is LA0409 over Drain No Name?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 50 ft wide.

Who owns LA0409 over Drain No Name?

It is owned by the State Highway Agency.