US Bridges

KY-7 over Rockhouse CR

Fair

Letcher County, Kentucky · .6 MI NE JCT Ky 15 @ Isom · Structure no. 067B00111N

Built
1985
40 years old
Condition
Fair
inspected May 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
135 ft
3 main spans
Daily traffic
1,647
2023 count
Owner
State
State Highway Agency

About this bridge

KY-7 over Rockhouse CR is a prestressed concrete stringer/multi-beam or girder carrying KY-7 over Rockhouse CR in Letcher County, Kentucky. It was built in 1985, so it is 40 years old, younger 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 1,647 vehicles a day, roughly 13% of them trucks, projected to reach 1,647 by 2043. The structure is 135 ft (41.2 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesKY-7
CrossesRockhouse CR
Location.6 MI NE JCT Ky 15 @ Isom
RouteState Highway 7
CountyLetcher County
StateKentucky
Coordinates37.19417, -82.89194
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2021
Inspection intervalevery 48 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 alignment6: Equal to present minimum criteria
Operating rating77.1 US tons
Inventory rating46.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.2 m)
Longest span60 ft (18.3 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,647 (2023)
Projected traffic1,647 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 KY-7 over Rockhouse CR built?

It was built in 1985, making it 40 years old in 2025.

What condition is KY-7 over Rockhouse CR 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 May 2021.

How much traffic does KY-7 over Rockhouse CR carry?

About 1,647 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is KY-7 over Rockhouse CR?

The structure is 135 ft (41.2 m) long with a longest span of 60 ft (18.3 m) and a deck 33 ft wide.

Who owns KY-7 over Rockhouse CR?

It is owned by the State Highway Agency.