US Bridges

Princeton Road over Unname Stream

Fair

Christian County, Kentucky · .25 MI S.E. of JCT Ky 168 · Structure no. 024B00055N

Built
1932
93 years old
Condition
Fair
inspected June 2022
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
2,696
2022 count
Owner
State
State Highway Agency

About this bridge

Princeton Road over Unname Stream is a concrete culvert carrying Princeton Road over Unname Stream in Christian County, Kentucky. It was built in 1932, so it is 93 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 2,696 vehicles a day, roughly 7% of them trucks, projected to reach 2,696 by 2042. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPrinceton Road
CrossesUnname Stream
Location.25 MI S.E. of JCT Ky 168
RouteState Highway 91
CountyChristian County
StateKentucky
Coordinates36.88306, -87.51583
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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 length23 ft (7 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 traffic2,696 (2022)
Projected traffic2,696 by 2042
Trucks7%
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 Princeton Road over Unname Stream built?

It was built in 1932, making it 93 years old in 2025.

What condition is Princeton 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 June 2022.

How much traffic does Princeton Road over Unname Stream carry?

About 2,696 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Princeton Road over Unname Stream?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Princeton Road over Unname Stream?

It is owned by the State Highway Agency.