US Bridges

KY-554 over Unname Stream

Fair

Daviess County, Kentucky · 1.0 MI West of JCT US 431 · Structure no. 030B00116N

Built
1957
68 years old
Condition
Fair
inspected November 2021
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
1,698
2022 count
Owner
State
State Highway Agency

About this bridge

KY-554 over Unname Stream is a concrete culvert carrying KY-554 over Unname Stream in Daviess County, Kentucky. It was built in 1957, so it is 68 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 1,698 vehicles a day, roughly 5% of them trucks, projected to reach 1,698 by 2042. The structure is 22 ft (6.6 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesKY-554
CrossesUnname Stream
Location1.0 MI West of JCT US 431
RouteState Highway 554
CountyDaviess County
StateKentucky
Coordinates37.68194, -87.15333
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 inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating60 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length22 ft (6.6 m)
Longest span10 ft (3.1 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,698 (2022)
Projected traffic1,698 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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-554 over Unname Stream built?

It was built in 1957, making it 68 years old in 2025.

What condition is KY-554 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 2021.

How much traffic does KY-554 over Unname Stream carry?

About 1,698 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is KY-554 over Unname Stream?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3.1 m) and a deck 26 ft wide.

Who owns KY-554 over Unname Stream?

It is owned by the State Highway Agency.