US Bridges

KY-2850 over I-71

FairPosted for load

Gallatin County, Kentucky · .10 MI S.W. of Boone Cl · Structure no. 039B00030N

Built
1967
58 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
274 ft
4 main spans
Daily traffic
256
2023 count
Owner
State
State Highway Agency

About this bridge

KY-2850 over I-71 is a concrete continuous tee beam carrying KY-2850 over I-71 in Gallatin County, Kentucky. It was built in 1967, so it is 58 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. Its operating status is: posted for load restriction.

It carries about 256 vehicles a day, projected to reach 256 by 2043. The structure is 274 ft (83.6 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesKY-2850
CrossesI-71
Location.10 MI S.W. of Boone Cl
RouteState Highway 2850
CountyGallatin County
StateKentucky
Coordinates38.81, -84.7175
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.4 US tons
Inventory rating30.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length274 ft (83.6 m)
Longest span79 ft (24 m)
Deck width32 ft (9.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic256 (2023)
Projected traffic256 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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-2850 over I-71 built?

It was built in 1967, making it 58 years old in 2025.

What condition is KY-2850 over I-71 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-2850 over I-71 carry?

About 256 vehicles per day (2023 count).

How long is KY-2850 over I-71?

The structure is 274 ft (83.6 m) long with a longest span of 79 ft (24 m) and a deck 32 ft wide.

Who owns KY-2850 over I-71?

It is owned by the State Highway Agency.