US Bridges

KY-37 over North Rolling Fork

Fair

Boyle County, Kentucky · .5 MI E of JCT Ky 1822 · Structure no. 011B00019N

Built
1949
76 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
345
2021 count
Owner
State
State Highway Agency

About this bridge

KY-37 over North Rolling Fork is a concrete culvert carrying KY-37 over North Rolling Fork in Boyle County, Kentucky. It was built in 1949, so it is 76 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 5 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 345 vehicles a day, projected to reach 345 by 2041. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesKY-37
CrossesNorth Rolling Fork
Location.5 MI E of JCT Ky 1822
RouteState Highway 37
CountyBoyle County
StateKentucky
Coordinates37.56222, -84.87889
Functional classRural Minor 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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating100.6 US tons
Inventory rating60.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic345 (2021)
Projected traffic345 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-37 over North Rolling Fork built?

It was built in 1949, making it 76 years old in 2025.

What condition is KY-37 over North Rolling 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 October 2024.

How much traffic does KY-37 over North Rolling Fork carry?

About 345 vehicles per day (2021 count).

How long is KY-37 over North Rolling Fork?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.3 m).

Who owns KY-37 over North Rolling Fork?

It is owned by the State Highway Agency.