US Bridges

LA0030 over Elbow Bayou

Fair

East Baton Rouge Parish, Louisiana · 2.1M NW of LA 42&LA 327-S · Structure no. 611704140105401

Built
1961
64 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
12,779
2021 count
Owner
State
State Highway Agency

About this bridge

LA0030 over Elbow Bayou is a concrete slab carrying LA0030 over Elbow Bayou 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 80 ft (24.4 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLA0030
CrossesElbow Bayou
Location2.1M NW of LA 42&LA 327-S
RouteState Highway 30
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.36883, -91.15738
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 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 closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$412,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0030 over Elbow Bayou built?

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

What condition is LA0030 over Elbow Bayou 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 May 2024.

How much traffic does LA0030 over Elbow Bayou carry?

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

How long is LA0030 over Elbow Bayou?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0030 over Elbow Bayou?

It is owned by the State Highway Agency.