US Bridges

US-460 over Rockhouse Fork

Fair

Magoffin County, Kentucky · .55 MI N.E. of JCT Ky 114 · Structure no. 077B00061N

Built
1976
49 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
3,405
2021 count
Owner
State
State Highway Agency

About this bridge

US-460 over Rockhouse Fork is a concrete culvert carrying US-460 over Rockhouse Fork in Magoffin County, Kentucky. It was built in 1976, so it is 49 years old, older than the Kentucky average of 46.6 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 3,405 vehicles a day, roughly 7% of them trucks, projected to reach 3,405 by 2041. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 11.2 mi (18 km).

CarriesUS-460
CrossesRockhouse Fork
Location.55 MI N.E. of JCT Ky 114
RouteU.S. Route 460
Coordinates37.73722, -83.01028
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 48 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 alignment9: Superior to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,405 (2021)
Projected traffic3,405 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemYes

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 US-460 over Rockhouse Fork built?

It was built in 1976, making it 49 years old in 2025.

What condition is US-460 over Rockhouse Fork 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 January 2024.

How much traffic does US-460 over Rockhouse Fork carry?

About 3,405 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is US-460 over Rockhouse Fork?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m).

Who owns US-460 over Rockhouse Fork?

It is owned by the State Highway Agency.