US Bridges

Mcknight RD over S.Ff Rockcastle Rvr

FairPosted for load

Laurel County, Kentucky · .2.MI. S JCT Ky 472 · Structure no. 063C00037N

Built
1989
36 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
36
2006 count
Owner
County
County Highway Agency

About this bridge

Mcknight RD over S.Ff Rockcastle Rvr is a steel stringer/multi-beam or girder carrying Mcknight RD over S.Ff Rockcastle Rvr in Laurel County, Kentucky. It was built in 1989, so it is 36 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 36 vehicles a day, projected to reach 66 by 2026. The structure is 25 ft (7.6 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesMcknight RD
CrossesS.Ff Rockcastle Rvr
Location.2.MI. S JCT Ky 472
RouteCounty Highway 1033
CountyLaurel County
StateKentucky
Coordinates37.18028, -83.95972
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating72.2 US tons
Inventory rating43.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span21 ft (6.4 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2006)
Projected traffic66 by 2026
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Mcknight RD over S.Ff Rockcastle Rvr built?

It was built in 1989, making it 36 years old in 2025.

What condition is Mcknight RD over S.Ff Rockcastle Rvr 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 March 2024.

How much traffic does Mcknight RD over S.Ff Rockcastle Rvr carry?

About 36 vehicles per day (2006 count).

How long is Mcknight RD over S.Ff Rockcastle Rvr?

The structure is 25 ft (7.6 m) long with a longest span of 21 ft (6.4 m) and a deck 12 ft wide.

Who owns Mcknight RD over S.Ff Rockcastle Rvr?

It is owned by the County Highway Agency.