US Bridges

LA0410 over Black Water Bayou

Good

East Baton Rouge Parish, Louisiana · 5.2 Miles North of LA.408 · Structure no. 611700000610351

Built
2016
9 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
3,664
2021 count
Owner
State
State Highway Agency

About this bridge

LA0410 over Black Water Bayou is a concrete slab carrying LA0410 over Black Water Bayou in East Baton Rouge Parish, Louisiana. It was built in 2016, so it is 9 years old, younger 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 3,664 vehicles a day, roughly 11% of them trucks, projected to reach 4,030 by 2041. The structure is 80 ft (24.4 m) long and 39 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesLA0410
CrossesBlack Water Bayou
Location5.2 Miles North of LA.408
RouteState Highway 410
Coordinates30.59966, -91.07392
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating51 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 width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,664 (2021)
Projected traffic4,030 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0410 over Black Water Bayou built?

It was built in 2016, making it 9 years old in 2025.

What condition is LA0410 over Black Water Bayou 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 April 2024.

How much traffic does LA0410 over Black Water Bayou carry?

About 3,664 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0410 over Black Water Bayou?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 39 ft wide.

Who owns LA0410 over Black Water Bayou?

It is owned by the State Highway Agency.