US Bridges

LA0513 over Brushy Bayou

PoorPosted for load

De Soto Parish, Louisiana · 1.81 MI North of LA 483 · Structure no. 041603000401811

Built
1969
56 years old
Condition
Poor
inspected May 2023
Type
Slab
Concrete
Length
96 ft
5 main spans
Daily traffic
243
2021 count
Owner
State
State Highway Agency

About this bridge

LA0513 over Brushy Bayou is a concrete slab carrying LA0513 over Brushy Bayou in De Soto Parish, Louisiana. It was built in 1969, so it is 56 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 243 vehicles a day, roughly 20% of them trucks, projected to reach 267 by 2041. The structure is 96 ft (29.3 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLA0513
CrossesBrushy Bayou
Location1.81 MI North of LA 483
RouteState Highway 513
CountyDe Soto Parish
StateLouisiana
Coordinates31.90174, -93.606
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.6 US tons
Inventory rating18.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic243 (2021)
Projected traffic267 by 2041
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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$478,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0513 over Brushy Bayou built?

It was built in 1969, making it 56 years old in 2025.

What condition is LA0513 over Brushy Bayou in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does LA0513 over Brushy Bayou carry?

About 243 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is LA0513 over Brushy Bayou?

The structure is 96 ft (29.3 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns LA0513 over Brushy Bayou?

It is owned by the State Highway Agency.