US Bridges

KY-1639 over Stump Cave Branch

FairPosted for load

Powell County, Kentucky · 5.1 MI S of JCT Ky 11/15 · Structure no. 099B00066N

Built
1956
69 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
83
2021 count
Owner
State
State Highway Agency

About this bridge

KY-1639 over Stump Cave Branch is a concrete culvert carrying KY-1639 over Stump Cave Branch in Powell 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. Its operating status is: posted for load restriction.

It carries about 83 vehicles a day, projected to reach 83 by 2041. The structure is 35 ft (10.8 m) long.

Location

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CarriesKY-1639
CrossesStump Cave Branch
Location5.1 MI S of JCT Ky 11/15
RouteState Highway 1639
CountyPowell County
StateKentucky
Coordinates37.76444, -83.73833
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.7 US tons
Inventory rating22 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length35 ft (10.8 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic83 (2021)
Projected traffic83 by 2041
Trucks0%
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 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-1639 over Stump Cave Branch built?

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

What condition is KY-1639 over Stump Cave 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 November 2024.

How much traffic does KY-1639 over Stump Cave Branch carry?

About 83 vehicles per day (2021 count).

How long is KY-1639 over Stump Cave Branch?

The structure is 35 ft (10.8 m) long with a longest span of 17 ft (5.2 m).

Who owns KY-1639 over Stump Cave Branch?

It is owned by the State Highway Agency.