US Bridges

Dyson Creek RD over Dyson Creek

Good

Grant Parish, Louisiana · 1.6 M. W. of US 165 · Structure no. 082231325922581

Built
1984
41 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
114 ft
6 main spans
Daily traffic
240
2022 count
Owner
County
County Highway Agency

About this bridge

Dyson Creek RD over Dyson Creek is a concrete slab carrying Dyson Creek RD over Dyson Creek in Grant Parish, Louisiana. It was built in 1984, so it is 41 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 240 vehicles a day, projected to reach 264 by 2042. The structure is 114 ft (34.7 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesDyson Creek RD
CrossesDyson Creek
Location1.6 M. W. of US 165
RouteCounty Highway 0
Coordinates31.53978, -92.4275
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length114 ft (34.7 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 traffic240 (2022)
Projected traffic264 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Dyson Creek RD over Dyson Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Dyson Creek RD over Dyson Creek 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 2023.

How much traffic does Dyson Creek RD over Dyson Creek carry?

About 240 vehicles per day (2022 count).

How long is Dyson Creek RD over Dyson Creek?

The structure is 114 ft (34.7 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Dyson Creek RD over Dyson Creek?

It is owned by the County Highway Agency.