US Bridges

SH 66/STONE County over Timbo Cr.

Good

Stone County, Arkansas · 4.3 MI NE Searcy CO Li · Structure no. 0000000000M1209

Built
1956
69 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
990
2018 count
Owner
State
State Highway Agency

About this bridge

SH 66/STONE County over Timbo Cr. is a concrete culvert carrying SH 66/STONE County over Timbo Cr. in Stone County, Arkansas. It was built in 1956, so it is 69 years old, older than the Arkansas average of 45.1 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 990 vehicles a day, roughly 10% of them trucks, projected to reach 1,458 by 2028. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 44.7 mi (72 km).

Location

Open in Google Maps
CarriesSH 66/STONE County
CrossesTimbo Cr.
Location4.3 MI NE Searcy CO Li
RouteState Highway 66
CountyStone County
StateArkansas
Coordinates35.88373, -92.35719
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46 US tons
Inventory rating28 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length29 ft (8.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic990 (2018)
Projected traffic1,458 by 2028
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 66/STONE County over Timbo Cr. built?

It was built in 1956, making it 69 years old in 2025.

What condition is SH 66/STONE County over Timbo Cr. 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 December 2023.

How much traffic does SH 66/STONE County over Timbo Cr. carry?

About 990 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is SH 66/STONE County over Timbo Cr.?

The structure is 29 ft (8.8 m) long with a longest span of 10 ft (3 m).

Who owns SH 66/STONE County over Timbo Cr.?

It is owned by the State Highway Agency.