US Bridges

KY-137 over Unname Stream

Fair

Livingston County, Kentucky · .10 MI Nor. of JCT Ky 143 · Structure no. 070B00002N

Built
1948
77 years old
Condition
Fair
inspected March 2021
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
83
2022 count
Owner
State
State Highway Agency

About this bridge

KY-137 over Unname Stream is a concrete culvert carrying KY-137 over Unname Stream in Livingston County, Kentucky. It was built in 1948, so it is 77 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 83 vehicles a day, projected to reach 83 by 2042. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesKY-137
CrossesUnname Stream
Location.10 MI Nor. of JCT Ky 143
RouteState Highway 137
CountyLivingston County
StateKentucky
Coordinates37.31694, -88.47778
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating82.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic83 (2022)
Projected traffic83 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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-137 over Unname Stream built?

It was built in 1948, making it 77 years old in 2025.

What condition is KY-137 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 March 2021.

How much traffic does KY-137 over Unname Stream carry?

About 83 vehicles per day (2022 count).

How long is KY-137 over Unname Stream?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m).

Who owns KY-137 over Unname Stream?

It is owned by the State Highway Agency.