US Bridges

KY-3391 over Right Fk Troublesome Crk

PoorPosted for load

Knott County, Kentucky · .1 MI SW of JCT Ky 160 · Structure no. 060B00067N

Built
1975
50 years old
Condition
Poor
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
2,095
2023 count
Owner
State
State Highway Agency

About this bridge

KY-3391 over Right Fk Troublesome Crk is a prestressed concrete box beam or girders - multiple carrying KY-3391 over Right Fk Troublesome Crk in Knott County, Kentucky. It was built in 1975, so it is 50 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. Its operating status is: posted for load restriction.

It carries about 2,095 vehicles a day, projected to reach 2,095 by 2043. The structure is 72 ft (21.9 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesKY-3391
CrossesRight Fk Troublesome Crk
Location.1 MI SW of JCT Ky 160
RouteState Highway 3391
CountyKnott County
StateKentucky
Coordinates37.32278, -82.96806
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.2 US tons
Inventory rating20.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span67 ft (20.5 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,095 (2023)
Projected traffic2,095 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$218,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-3391 over Right Fk Troublesome Crk built?

It was built in 1975, making it 50 years old in 2025.

What condition is KY-3391 over Right Fk Troublesome Crk 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 June 2023.

How much traffic does KY-3391 over Right Fk Troublesome Crk carry?

About 2,095 vehicles per day (2023 count).

How long is KY-3391 over Right Fk Troublesome Crk?

The structure is 72 ft (21.9 m) long with a longest span of 67 ft (20.5 m) and a deck 24 ft wide.

Who owns KY-3391 over Right Fk Troublesome Crk?

It is owned by the State Highway Agency.