US Bridges

KY-36 over I-75

Fair

Grant County, Kentucky · .3 MI W of JCT US 25 · Structure no. 041B00007N

Built
1961
64 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete Continuous
Length
255 ft
4 main spans
Daily traffic
6,573
2022 count
Owner
State
State Highway Agency

About this bridge

KY-36 over I-75 is a concrete continuous tee beam carrying KY-36 over I-75 in Grant County, Kentucky. It was built in 1961, so it is 64 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 5 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 6,573 vehicles a day, roughly 15% of them trucks, projected to reach 6,573 by 2042. The structure is 255 ft (77.7 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKY-36
CrossesI-75
Location.3 MI W of JCT US 25
RouteState Highway 36
CountyGrant County
StateKentucky
Coordinates38.62583, -84.57333
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.1 US tons
Inventory rating34.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length255 ft (77.7 m)
Longest span80 ft (24.4 m)
Deck width37 ft (11.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,573 (2022)
Projected traffic6,573 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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-36 over I-75 built?

It was built in 1961, making it 64 years old in 2025.

What condition is KY-36 over I-75 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 2024.

How much traffic does KY-36 over I-75 carry?

About 6,573 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is KY-36 over I-75?

The structure is 255 ft (77.7 m) long with a longest span of 80 ft (24.4 m) and a deck 37 ft wide.

Who owns KY-36 over I-75?

It is owned by the State Highway Agency.