US Bridges

KY-582 over Smith Branch

FairPosted for load

Knott County, Kentucky · 1.6 MI East of JCT Ky 160 · Structure no. 060B00028N

Built
1949
76 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
950
2018 count
Owner
State
State Highway Agency

About this bridge

KY-582 over Smith Branch is a concrete culvert carrying KY-582 over Smith Branch in Knott County, Kentucky. It was built in 1949, so it is 76 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. Its operating status is: posted for load restriction.

It carries about 950 vehicles a day, roughly 7% of them trucks, projected to reach 950 by 2038. The structure is 21 ft (6.4 m) long and 29 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesKY-582
CrossesSmith Branch
Location1.6 MI East of JCT Ky 160
RouteState Highway 582
CountyKnott County
StateKentucky
Coordinates37.25944, -82.91972
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 spans2
Design loadH 15
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width29 ft (8.8 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2018)
Projected traffic950 by 2038
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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-582 over Smith Branch built?

It was built in 1949, making it 76 years old in 2025.

What condition is KY-582 over Smith 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 June 2023.

How much traffic does KY-582 over Smith Branch carry?

About 950 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is KY-582 over Smith Branch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns KY-582 over Smith Branch?

It is owned by the State Highway Agency.