US Bridges

KY-1224 over Rockhouse Fork

Poor

Martin County, Kentucky · @ JCT of Ky 40 @ Tomahawk · Structure no. 080B00006N

Built
1973
52 years old
Condition
Poor
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
676
2021 count
Owner
State
State Highway Agency

About this bridge

KY-1224 over Rockhouse Fork is a prestressed concrete box beam or girders - multiple carrying KY-1224 over Rockhouse Fork in Martin County, Kentucky. It was built in 1973, so it is 52 years old, older than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 676 vehicles a day, roughly 11% of them trucks, projected to reach 676 by 2041. The structure is 47 ft (14.3 m) long and 22 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesKY-1224
CrossesRockhouse Fork
Location@ JCT of Ky 40 @ Tomahawk
RouteState Highway 1224
Coordinates37.86889, -82.59556
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating57.1 US tons
Inventory rating34.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span45 ft (13.7 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic676 (2021)
Projected traffic676 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$126,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-1224 over Rockhouse Fork built?

It was built in 1973, making it 52 years old in 2025.

What condition is KY-1224 over Rockhouse Fork in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does KY-1224 over Rockhouse Fork carry?

About 676 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is KY-1224 over Rockhouse Fork?

The structure is 47 ft (14.3 m) long with a longest span of 45 ft (13.7 m) and a deck 22 ft wide.

Who owns KY-1224 over Rockhouse Fork?

It is owned by the State Highway Agency.