US Bridges

KY-91 over Friendship Branch

Fair

Caldwell County, Kentucky · 1.9 MI Nor. of JCT Ky 672 · Structure no. 017B00018N

Built
1935
90 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
1,346
2022 count
Owner
State
State Highway Agency

About this bridge

KY-91 over Friendship Branch is a concrete culvert carrying KY-91 over Friendship Branch in Caldwell County, Kentucky. It was built in 1935, so it is 90 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 1,346 vehicles a day, roughly 9% of them trucks, projected to reach 1,346 by 2042. The structure is 21 ft (6.4 m) long and 33 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

Location

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CarriesKY-91
CrossesFriendship Branch
Location1.9 MI Nor. of JCT Ky 672
RouteState Highway 91
CountyCaldwell County
StateKentucky
Coordinates37.05889, -87.76917
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 inspectionJanuary 2023
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 length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width33 ft (10.1 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,346 (2022)
Projected traffic1,346 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13.7 mi (22 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 Friendship Branch built?

It was built in 1935, making it 90 years old in 2025.

What condition is KY-91 over Friendship Branch 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 January 2023.

How much traffic does KY-91 over Friendship Branch carry?

About 1,346 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is KY-91 over Friendship Branch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 33 ft wide.

Who owns KY-91 over Friendship Branch?

It is owned by the State Highway Agency.