US Bridges

LA0511 over Brush Bayou

Good

Caddo Parish, Louisiana · 4.0 MI East of LA 3132 · Structure no. 040901020110631

Built
1963
62 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
21,080
2021 count
Owner
State
State Highway Agency

About this bridge

LA0511 over Brush Bayou is a concrete culvert carrying LA0511 over Brush Bayou in Caddo Parish, Louisiana. It was built in 1963, so it is 62 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 21,080 vehicles a day, roughly 8% of them trucks, projected to reach 23,188 by 2041. The structure is 34 ft (10.4 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA0511
CrossesBrush Bayou
Location4.0 MI East of LA 3132
RouteState Highway 511
Coordinates32.44197, -93.78465
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
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 loadHS 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width79 ft (24.2 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,080 (2021)
Projected traffic23,188 by 2041
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$262,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0511 over Brush Bayou built?

It was built in 1963, making it 62 years old in 2025.

What condition is LA0511 over Brush 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 February 2024.

How much traffic does LA0511 over Brush Bayou carry?

About 21,080 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is LA0511 over Brush Bayou?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 79 ft wide.

Who owns LA0511 over Brush Bayou?

It is owned by the State Highway Agency.