US Bridges

Calhoun Road over Unname Stream

Fair

Daviess County, Kentucky · 1.8 MI Sou. of JCT Ky 56 · Structure no. 030B00054N

Built
1940
85 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
39 ft
2 main spans
Daily traffic
3,554
2023 count
Owner
State
State Highway Agency

About this bridge

Calhoun Road over Unname Stream is a concrete culvert carrying Calhoun Road over Unname Stream in Daviess County, Kentucky. It was built in 1940, so it is 85 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 3,554 vehicles a day, roughly 15% of them trucks, projected to reach 3,554 by 2043. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCalhoun Road
CrossesUnname Stream
Location1.8 MI Sou. of JCT Ky 56
RouteState Highway 81
CountyDaviess County
StateKentucky
Coordinates37.72722, -87.17972
Functional classUrban Minor Arterial

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.7 US tons
Inventory rating50.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length39 ft (11.9 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,554 (2023)
Projected traffic3,554 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Calhoun Road over Unname Stream built?

It was built in 1940, making it 85 years old in 2025.

What condition is Calhoun Road 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 2023.

How much traffic does Calhoun Road over Unname Stream carry?

About 3,554 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Calhoun Road over Unname Stream?

The structure is 39 ft (11.9 m) long with a longest span of 16 ft (4.9 m).

Who owns Calhoun Road over Unname Stream?

It is owned by the State Highway Agency.