US Bridges

KY-777 over Stone Coal Branch

Fair

Floyd County, Kentucky · 0.6 MI East of JCT Ky 7 · Structure no. 036B00073N

Built
1956
69 years old
Condition
Fair
inspected September 2021
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
796
2019 count
Owner
State
State Highway Agency

About this bridge

KY-777 over Stone Coal Branch is a concrete culvert carrying KY-777 over Stone Coal Branch in Floyd County, Kentucky. It was built in 1956, so it is 69 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 796 vehicles a day, projected to reach 796 by 2039. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesKY-777
CrossesStone Coal Branch
Location0.6 MI East of JCT Ky 7
RouteState Highway 777
CountyFloyd County
StateKentucky
Coordinates37.4775, -82.82806
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.1 US tons
Inventory rating49.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length26 ft (7.9 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic796 (2019)
Projected traffic796 by 2039
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-777 over Stone Coal Branch built?

It was built in 1956, making it 69 years old in 2025.

What condition is KY-777 over Stone Coal Branch 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 2021.

How much traffic does KY-777 over Stone Coal Branch carry?

About 796 vehicles per day (2019 count).

How long is KY-777 over Stone Coal Branch?

The structure is 26 ft (7.9 m) long with a longest span of 11 ft (3.4 m).

Who owns KY-777 over Stone Coal Branch?

It is owned by the State Highway Agency.