US Bridges

KY-979 over Mud Creek

FairPosted for load

Floyd County, Kentucky · 4.2 MI S of JCT Ky 680 · Structure no. 036B00044N

Built
1951
74 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
940
2021 count
Owner
State
State Highway Agency

About this bridge

KY-979 over Mud Creek is a concrete culvert carrying KY-979 over Mud Creek in Floyd County, Kentucky. It was built in 1951, so it is 74 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 940 vehicles a day, roughly 6% of them trucks, projected to reach 940 by 2041. The structure is 44 ft (13.4 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesKY-979
CrossesMud Creek
Location4.2 MI S of JCT Ky 680
RouteState Highway 979
CountyFloyd County
StateKentucky
Coordinates37.41361, -82.64806
Functional classRural Major 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.7 US tons
Inventory rating22 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length44 ft (13.4 m)
Longest span14 ft (4.2 m)
Deck width27 ft (8.2 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic940 (2021)
Projected traffic940 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-979 over Mud Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is KY-979 over Mud 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 September 2023.

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

About 940 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is KY-979 over Mud Creek?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.2 m) and a deck 27 ft wide.

Who owns KY-979 over Mud Creek?

It is owned by the State Highway Agency.