US Bridges

US0084 over Dugdemona River Relief

Good

Winn Parish, Louisiana · 0.69 MI East Jct. US 167 · Structure no. 086400220300691

Built
1996
29 years old, rebuilt 2004
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
160 ft
8 main spans
Daily traffic
4,317
2021 count
Owner
State
State Highway Agency

About this bridge

US0084 over Dugdemona River Relief is a concrete slab carrying US0084 over Dugdemona River Relief in Winn Parish, Louisiana. It was built in 1996 and reconstructed in 2004, so it is 29 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 4,317 vehicles a day, roughly 15% of them trucks, projected to reach 4,748 by 2041. The structure is 160 ft (48.8 m) long and 47 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesUS0084
CrossesDugdemona River Relief
Location0.69 MI East Jct. US 167
RouteU.S. Route 84
Coordinates31.92951, -92.6156
Functional classRural Principal Arterial - Other

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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating81 US tons
Inventory rating48 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span20 ft (6.1 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,317 (2021)
Projected traffic4,748 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US0084 over Dugdemona River Relief built?

It was built in 1996, making it 29 years old in 2025. It was reconstructed in 2004.

What condition is US0084 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 August 2023.

How much traffic does US0084 over Dugdemona River Relief carry?

About 4,317 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US0084 over Dugdemona River Relief?

The structure is 160 ft (48.8 m) long with a longest span of 20 ft (6.1 m) and a deck 47 ft wide.

Who owns US0084 over Dugdemona River Relief?

It is owned by the State Highway Agency.