US Bridges

LA0501 over Iron Branch

Good

Winn Parish, Louisiana · 2.0 MI N of LA 1232 · Structure no. 086400000086400

Built
2022
3 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
37 ft
4 main spans
Daily traffic
549
2021 count
Owner
State
State Highway Agency

About this bridge

LA0501 over Iron Branch is a concrete culvert carrying LA0501 over Iron Branch in Winn Parish, Louisiana. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 549 vehicles a day, roughly 15% of them trucks, projected to reach 603 by 2041. The structure is 37 ft (11.3 m) long and 78 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesLA0501
CrossesIron Branch
Location2.0 MI N of LA 1232
RouteState Highway 501
Coordinates32.01605, -92.78377
Functional classRural Major Collector

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 protection9 ExcellentNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating53.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span7 ft (2.1 m)
Deck width78 ft (23.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic549 (2021)
Projected traffic603 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0501 over Iron Branch built?

It was built in 2022, making it 3 years old in 2025.

What condition is LA0501 over Iron Branch 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 September 2023.

How much traffic does LA0501 over Iron Branch carry?

About 549 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0501 over Iron Branch?

The structure is 37 ft (11.3 m) long with a longest span of 7 ft (2.1 m) and a deck 78 ft wide.

Who owns LA0501 over Iron Branch?

It is owned by the State Highway Agency.