US Bridges

KY-76 over Blue Branch

Fair

Adair County, Kentucky · .6 MI NW of N-Jct Ky 206 · Structure no. 001B00004N

Built
1958
67 years old, rebuilt 1969
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
555
2022 count
Owner
State
State Highway Agency

About this bridge

KY-76 over Blue Branch is a concrete culvert carrying KY-76 over Blue Branch in Adair County, Kentucky. It was built in 1958 and reconstructed in 1969, so it is 67 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 555 vehicles a day, projected to reach 555 by 2042. The structure is 21 ft (6.4 m) long and 31 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesKY-76
CrossesBlue Branch
Location.6 MI NW of N-Jct Ky 206
RouteState Highway 76
CountyAdair County
StateKentucky
Coordinates37.20333, -85.13444
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating44 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 width31 ft (9.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic555 (2022)
Projected traffic555 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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-76 over Blue Branch built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1969.

What condition is KY-76 over Blue 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 July 2023.

How much traffic does KY-76 over Blue Branch carry?

About 555 vehicles per day (2022 count).

How long is KY-76 over Blue Branch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns KY-76 over Blue Branch?

It is owned by the State Highway Agency.