US Bridges

LA0572 over Macon Bayou

Good

Franklin Parish, Louisiana · 1.9 M E of US 425 · Structure no. 582108212302021

Built
2003
22 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
500 ft
10 main spans
Daily traffic
265
2021 count
Owner
State
State Highway Agency

About this bridge

LA0572 over Macon Bayou is a prestressed concrete stringer/multi-beam or girder carrying LA0572 over Macon Bayou in Franklin Parish, Louisiana. It was built in 2003, so it is 22 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 265 vehicles a day, roughly 11% of them trucks, projected to reach 291 by 2041. The structure is 500 ft (152.4 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesLA0572
CrossesMacon Bayou
Location1.9 M E of US 425
RouteState Highway 572
Coordinates32.04528, -91.6264
Functional classRural Local

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 protection7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.7 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length500 ft (152.4 m)
Longest span50 ft (15.2 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic265 (2021)
Projected traffic291 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 LA0572 over Macon Bayou built?

It was built in 2003, making it 22 years old in 2025.

What condition is LA0572 over Macon 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 LA0572 over Macon Bayou carry?

About 265 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0572 over Macon Bayou?

The structure is 500 ft (152.4 m) long with a longest span of 50 ft (15.2 m) and a deck 40 ft wide.

Who owns LA0572 over Macon Bayou?

It is owned by the State Highway Agency.