US Bridges

KY-56 over Unname Stream

FairPosted for load

Webster County, Kentucky · 2.0 MI West of JCT Ky 283 · Structure no. 117B00010N

Built
1941
84 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
1,344
2023 count
Owner
State
State Highway Agency

About this bridge

KY-56 over Unname Stream is a concrete culvert carrying KY-56 over Unname Stream in Webster County, Kentucky. It was built in 1941, so it is 84 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 5 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 1,344 vehicles a day, roughly 17% of them trucks, projected to reach 1,344 by 2043. The structure is 26 ft (7.9 m) long and 28 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesKY-56
CrossesUnname Stream
Location2.0 MI West of JCT Ky 283
RouteState Highway 56
CountyWebster County
StateKentucky
Coordinates37.62917, -87.61889
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,344 (2023)
Projected traffic1,344 by 2043
Trucks17%
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-56 over Unname Stream built?

It was built in 1941, making it 84 years old in 2025.

What condition is KY-56 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 November 2024.

How much traffic does KY-56 over Unname Stream carry?

About 1,344 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is KY-56 over Unname Stream?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 28 ft wide.

Who owns KY-56 over Unname Stream?

It is owned by the State Highway Agency.