US Bridges

CR 510 - B over Big Slough Ditch

Fair

Craighead County, Arkansas · W of Monette · Structure no. 000000000011947

Built
1978
47 years old
Condition
Fair
inspected February 2025
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
235
2018 count
Owner
County
County Highway Agency

About this bridge

CR 510 - B over Big Slough Ditch is a prestressed concrete slab carrying CR 510 - B over Big Slough Ditch in Craighead County, Arkansas. It was built in 1978, so it is 47 years old, older than the Arkansas average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 235 vehicles a day, roughly 1% of them trucks, projected to reach 291 by 2007. The structure is 41 ft (12.5 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR 510 - B
CrossesBig Slough Ditch
LocationW of Monette
RouteCounty Highway 510
CountyCraighead County
StateArkansas
Coordinates35.89133, -90.37628
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length41 ft (12.5 m)
Longest span38 ft (11.6 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic235 (2018)
Projected traffic291 by 2007
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 CR 510 - B over Big Slough Ditch built?

It was built in 1978, making it 47 years old in 2025.

What condition is CR 510 - B over Big Slough Ditch 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 February 2025.

How much traffic does CR 510 - B over Big Slough Ditch carry?

About 235 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is CR 510 - B over Big Slough Ditch?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.6 m) and a deck 24 ft wide.

Who owns CR 510 - B over Big Slough Ditch?

It is owned by the County Highway Agency.