US Bridges

Thing Dufour RD over Bayou Des Glaises

Good

Avoyelles Parish, Louisiana · 0.15 Mi. East of LA 451 · Structure no. 080531019914841

Built
1998
27 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete
Length
171 ft
9 main spans
Daily traffic
220
2020 count
Owner
County
County Highway Agency

About this bridge

Thing Dufour RD over Bayou Des Glaises is a concrete slab carrying Thing Dufour RD over Bayou Des Glaises in Avoyelles Parish, Louisiana. It was built in 1998, so it is 27 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 220 vehicles a day, projected to reach 242 by 2040. The structure is 171 ft (52.1 m) long and 27 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesThing Dufour RD
CrossesBayou Des Glaises
Location0.15 Mi. East of LA 451
RouteCounty Highway 0
CountyAvoyelles Parish
StateLouisiana
Coordinates31.03092, -91.8079
Functional classRural 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 protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating38.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadH 20
Structure length171 ft (52.1 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2020)
Projected traffic242 by 2040
Trucks—
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

OwnerCounty Highway Agency
Maintained byCounty 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 Thing Dufour RD over Bayou Des Glaises built?

It was built in 1998, making it 27 years old in 2025.

What condition is Thing Dufour RD over Bayou Des Glaises 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 Thing Dufour RD over Bayou Des Glaises carry?

About 220 vehicles per day (2020 count).

How long is Thing Dufour RD over Bayou Des Glaises?

The structure is 171 ft (52.1 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Thing Dufour RD over Bayou Des Glaises?

It is owned by the County Highway Agency.