US Bridges

LA0523 over Bayou Pierre

Good

Caddo Parish, Louisiana · 1.82 W. of JCT of LA1 · Structure no. 040900000040292

Built
2011
14 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete
Length
200 ft
10 main spans
Daily traffic
12,580
2021 count
Owner
State
State Highway Agency

About this bridge

LA0523 over Bayou Pierre is a concrete slab carrying LA0523 over Bayou Pierre in Caddo Parish, Louisiana. It was built in 2011, so it is 14 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 12,580 vehicles a day, roughly 10% of them trucks, projected to reach 13,838 by 2041. The structure is 200 ft (61 m) long and 73 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLA0523
CrossesBayou Pierre
Location1.82 W. of JCT of LA1
RouteState Highway 523
Coordinates32.39691, -93.7233
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length200 ft (61 m)
Longest span20 ft (6.1 m)
Deck width73 ft (22.4 m)
Roadway width70 ft (21.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,580 (2021)
Projected traffic13,838 by 2041
Trucks10%
Lanes on structure4
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0523 over Bayou Pierre built?

It was built in 2011, making it 14 years old in 2025.

What condition is LA0523 over Bayou Pierre 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 2023.

How much traffic does LA0523 over Bayou Pierre carry?

About 12,580 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA0523 over Bayou Pierre?

The structure is 200 ft (61 m) long with a longest span of 20 ft (6.1 m) and a deck 73 ft wide.

Who owns LA0523 over Bayou Pierre?

It is owned by the State Highway Agency.