US Bridges

KY-348 over Unname Stream

Fair

McCracken County, Kentucky · .70 MI East of JCT Ky 101 · Structure no. 073B00070N

Built
1955
70 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
746
2022 count
Owner
State
State Highway Agency

About this bridge

KY-348 over Unname Stream is a concrete culvert carrying KY-348 over Unname Stream in McCracken County, Kentucky. It was built in 1955, so it is 70 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.

It carries about 746 vehicles a day, projected to reach 746 by 2042. The structure is 21 ft (6.3 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesKY-348
CrossesUnname Stream
Location.70 MI East of JCT Ky 101
RouteState Highway 348
CountyMcCracken County
StateKentucky
Coordinates36.965, -88.62083
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 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 statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating28.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic746 (2022)
Projected traffic746 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-348 over Unname Stream built?

It was built in 1955, making it 70 years old in 2025.

What condition is KY-348 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-348 over Unname Stream carry?

About 746 vehicles per day (2022 count).

How long is KY-348 over Unname Stream?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns KY-348 over Unname Stream?

It is owned by the State Highway Agency.