US Bridges

Dyson Creek RD over Big Creek

Fair

Grant Parish, Louisiana · 7.68 M. W. of Jct. US 165 · Structure no. 082231343923091

Built
1995
30 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
133 ft
7 main spans
Daily traffic
176
2022 count
Owner
County
County Highway Agency

About this bridge

Dyson Creek RD over Big Creek is a concrete slab carrying Dyson Creek RD over Big Creek in Grant Parish, Louisiana. It was built in 1995, so it is 30 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 176 vehicles a day, projected to reach 193 by 2042. The structure is 133 ft (40.5 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDyson Creek RD
CrossesBig Creek
Location7.68 M. W. of Jct. US 165
RouteCounty Highway 0
CountyGrant Parish
StateLouisiana
Coordinates31.57224, -92.5169
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans7
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic176 (2022)
Projected traffic193 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Dyson Creek RD over Big Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Dyson Creek RD over Big Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

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

About 176 vehicles per day (2022 count).

How long is Dyson Creek RD over Big Creek?

The structure is 133 ft (40.5 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns Dyson Creek RD over Big Creek?

It is owned by the County Highway Agency.