US Bridges

KY-979 over Mud Creek

PoorPosted for load

Floyd County, Kentucky · .05 MI S of JCT Ky 3680 · Structure no. 036B00093N

Built
1976
49 years old
Condition
Poor
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
74 ft
2 main spans
Daily traffic
2,069
2023 count
Owner
State
State Highway Agency

About this bridge

KY-979 over Mud Creek is a prestressed concrete box beam or girders - multiple carrying KY-979 over Mud Creek in Floyd County, Kentucky. It was built in 1976, so it is 49 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 3 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 2,069 vehicles a day, roughly 6% of them trucks, projected to reach 2,069 by 2043. The structure is 74 ft (22.6 m) long and 25 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesKY-979
CrossesMud Creek
Location.05 MI S of JCT Ky 3680
RouteState Highway 979
Coordinates37.46139, -82.65583
Functional classRural Major 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.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating5 US tons
Inventory rating3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span34 ft (10.4 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,069 (2023)
Projected traffic2,069 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$473,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-979 over Mud Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is KY-979 over Mud Creek 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 September 2024.

How much traffic does KY-979 over Mud Creek carry?

About 2,069 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is KY-979 over Mud Creek?

The structure is 74 ft (22.6 m) long with a longest span of 34 ft (10.4 m) and a deck 25 ft wide.

Who owns KY-979 over Mud Creek?

It is owned by the State Highway Agency.