US Bridges

KY-871 over Unname Stream

Fair

Union County, Kentucky · .05 MI W of JCT Ky 1671 · Structure no. 113B00066N

Built
1951
74 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
66
2022 count
Owner
State
State Highway Agency

About this bridge

KY-871 over Unname Stream is a concrete culvert carrying KY-871 over Unname Stream in Union 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 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 66 vehicles a day, projected to reach 66 by 2042. The structure is 24 ft (7.4 m) long.

CarriesKY-871
CrossesUnname Stream
Location.05 MI W of JCT Ky 1671
RouteState Highway 871
Coordinates37.76389, -88.00139
Functional classRural Local

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 inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length24 ft (7.4 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66 (2022)
Projected traffic66 by 2042
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-871 over Unname Stream built?

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

What condition is KY-871 over Unname Stream 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 December 2023.

How much traffic does KY-871 over Unname Stream carry?

About 66 vehicles per day (2022 count).

How long is KY-871 over Unname Stream?

The structure is 24 ft (7.4 m) long with a longest span of 11 ft (3.5 m).

Who owns KY-871 over Unname Stream?

It is owned by the State Highway Agency.