US Bridges

KY-1231 over Troublesome Creek

FairPosted for load

Knott County, Kentucky · 0.05 MI S of JCT Ky 550 · Structure no. 060B00043N

Built
1950
75 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
114 ft
3 main spans
Daily traffic
704
2022 count
Owner
State
State Highway Agency

About this bridge

KY-1231 over Troublesome Creek is a concrete tee beam carrying KY-1231 over Troublesome Creek in Knott County, Kentucky. It was built in 1950, so it is 75 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. Its operating status is: posted for load restriction.

It carries about 704 vehicles a day, projected to reach 704 by 2042. The structure is 114 ft (34.7 m) long and 26 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

Location

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CarriesKY-1231
CrossesTroublesome Creek
Location0.05 MI S of JCT Ky 550
RouteState Highway 1231
CountyKnott County
StateKentucky
Coordinates37.3275, -83.01444
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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.5 US tons
Inventory rating29.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length114 ft (34.7 m)
Longest span35 ft (10.7 m)
Deck width26 ft (7.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic704 (2022)
Projected traffic704 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$300,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-1231 over Troublesome Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is KY-1231 over Troublesome Creek 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 June 2024.

How much traffic does KY-1231 over Troublesome Creek carry?

About 704 vehicles per day (2022 count).

How long is KY-1231 over Troublesome Creek?

The structure is 114 ft (34.7 m) long with a longest span of 35 ft (10.7 m) and a deck 26 ft wide.

Who owns KY-1231 over Troublesome Creek?

It is owned by the State Highway Agency.