US Bridges

LA0030 over Stream

Fair

East Baton Rouge Parish, Louisiana · 4.0M NW of LA 42 · Structure no. 611704140103501

Built
1961
64 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
53 ft
3 main spans
Daily traffic
12,779
2021 count
Owner
State
State Highway Agency

About this bridge

LA0030 over Stream is a concrete culvert carrying LA0030 over Stream in East Baton Rouge Parish, Louisiana. It was built in 1961, so it is 64 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 12,779 vehicles a day, roughly 9% of them trucks, projected to reach 14,056 by 2041. The structure is 53 ft (16.2 m) long and 77 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA0030
CrossesStream
Location4.0M NW of LA 42
RouteState Highway 30
Coordinates30.39243, -91.17485
Functional classUrban Other Principal Arterial

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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum 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 loadHS 20
Structure length53 ft (16.2 m)
Longest span8 ft (2.4 m)
Deck width77 ft (23.6 m)
Roadway width73 ft (22.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,779 (2021)
Projected traffic14,056 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 LA0030 over Stream built?

It was built in 1961, making it 64 years old in 2025.

What condition is LA0030 over Stream 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 November 2024.

How much traffic does LA0030 over Stream carry?

About 12,779 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0030 over Stream?

The structure is 53 ft (16.2 m) long with a longest span of 8 ft (2.4 m) and a deck 77 ft wide.

Who owns LA0030 over Stream?

It is owned by the State Highway Agency.