US Bridges

KY-680 over Little Mud

Good

Floyd County, Kentucky · 3rd Bridge from JCT US 23 · Structure no. 036B00148N

Built
2003
22 years old
Condition
Good
inspected September 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
183 ft
3 main spans
Daily traffic
3,408
2023 count
Owner
State
State Highway Agency

About this bridge

KY-680 over Little Mud is a prestressed concrete stringer/multi-beam or girder carrying KY-680 over Little Mud in Floyd County, Kentucky. It was built in 2003, so it is 22 years old, younger than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,408 vehicles a day, roughly 8% of them trucks, projected to reach 3,408 by 2043. The structure is 183 ft (55.8 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesKY-680
CrossesLittle Mud
Location3rd Bridge from JCT US 23
RouteState Highway 680
CountyFloyd County
StateKentucky
Coordinates37.53389, -82.64389
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length183 ft (55.8 m)
Longest span60 ft (18.3 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,408 (2023)
Projected traffic3,408 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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-680 over Little Mud built?

It was built in 2003, making it 22 years old in 2025.

What condition is KY-680 over Little Mud in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2021.

How much traffic does KY-680 over Little Mud carry?

About 3,408 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is KY-680 over Little Mud?

The structure is 183 ft (55.8 m) long with a longest span of 60 ft (18.3 m) and a deck 45 ft wide.

Who owns KY-680 over Little Mud?

It is owned by the State Highway Agency.