US Bridges

KY-91 over Unname Stream

Good

Christian County, Kentucky · 1.3 MI S.E. of JCT Ky 134 · Structure no. 024B00048N

Built
1932
93 years old
Condition
Good
inspected June 2022
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
3,948
2020 count
Owner
State
State Highway Agency

About this bridge

KY-91 over Unname Stream is a concrete culvert carrying KY-91 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,948 vehicles a day, roughly 7% of them trucks, projected to reach 3,948 by 2040. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesKY-91
CrossesUnname Stream
Location1.3 MI S.E. of JCT Ky 134
RouteState Highway 91
CountyChristian County
StateKentucky
Coordinates36.91222, -87.57194
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 length24 ft (7.3 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 traffic3,948 (2020)
Projected traffic3,948 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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-91 over Unname Stream built?

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

What condition is KY-91 over Unname Stream in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2022.

How much traffic does KY-91 over Unname Stream carry?

About 3,948 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is KY-91 over Unname Stream?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns KY-91 over Unname Stream?

It is owned by the State Highway Agency.