US Bridges

LA0415 over Stream No Name

Good

West Baton Rouge Parish, Louisiana · 0.2 M N of LA 415@LA 413 · Structure no. 616100130102231

Built
1926
99 years old, rebuilt 1990
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
85 ft
5 main spans
Daily traffic
21,189
2021 count
Owner
State
State Highway Agency

About this bridge

LA0415 over Stream No Name is a concrete culvert carrying LA0415 over Stream No Name in West Baton Rouge Parish, Louisiana. It was built in 1926 and reconstructed in 1990, so it is 99 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 21,189 vehicles a day, roughly 9% of them trucks, projected to reach 23,307 by 2041. The structure is 85 ft (25.9 m) long and 80 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLA0415
CrossesStream No Name
Location0.2 M N of LA 415@LA 413
RouteState Highway 415
Coordinates30.46509, -91.24976
Functional classUrban Other Principal Arterial

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 geometry9: Superior to present desirable criteria
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 spans5
Design loadH 15
Structure length85 ft (25.9 m)
Longest span6 ft (1.8 m)
Deck width80 ft (24.4 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,189 (2021)
Projected traffic23,307 by 2041
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 LA0415 over Stream No Name built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1990.

What condition is LA0415 over Stream 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 LA0415 over Stream No Name carry?

About 21,189 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0415 over Stream No Name?

The structure is 85 ft (25.9 m) long with a longest span of 6 ft (1.8 m) and a deck 80 ft wide.

Who owns LA0415 over Stream No Name?

It is owned by the State Highway Agency.