US Bridges

LA0126 over Dugdemona River Relief

Good

Winn Parish, Louisiana · 1.4 MI E. of Jct. LA 501 · Structure no. 086400910601401

Built
1986
39 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
527
2021 count
Owner
State
State Highway Agency

About this bridge

LA0126 over Dugdemona River Relief is a concrete slab carrying LA0126 over Dugdemona River Relief in Winn Parish, Louisiana. It was built in 1986, so it is 39 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 527 vehicles a day, roughly 14% of them trucks, projected to reach 579 by 2041. The structure is 140 ft (42.7 m) long and 33 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesLA0126
CrossesDugdemona River Relief
Location1.4 MI E. of Jct. LA 501
RouteState Highway 126
Coordinates32.12185, -92.8193
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic527 (2021)
Projected traffic579 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed29.8 mi (48 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 LA0126 over Dugdemona River Relief built?

It was built in 1986, making it 39 years old in 2025.

What condition is LA0126 over Dugdemona River Relief 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 July 2023.

How much traffic does LA0126 over Dugdemona River Relief carry?

About 527 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0126 over Dugdemona River Relief?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0126 over Dugdemona River Relief?

It is owned by the State Highway Agency.