US Bridges

US-25W over I-75 S-Ntrchnge

FairPosted for load

Whitley County, Kentucky · 1.4 MI NW of JCT Ky 26 · Structure no. 118B00030N

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete Continuous
Length
235 ft
4 main spans
Daily traffic
6,299
2021 count
Owner
State
State Highway Agency

About this bridge

US-25W over I-75 S-Ntrchnge is a concrete continuous tee beam carrying US-25W over I-75 S-Ntrchnge in Whitley County, Kentucky. It was built in 1966, so it is 59 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 6,299 vehicles a day, roughly 9% of them trucks, projected to reach 6,299 by 2041. The structure is 235 ft (71.6 m) long and 34 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesUS-25W
CrossesI-75 S-Ntrchnge
Location1.4 MI NW of JCT Ky 26
RouteU.S. Route 25
Coordinates36.79278, -84.17
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 alignment7: Better than present minimum criteria
Operating rating38.5 US tons
Inventory rating23.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length235 ft (71.6 m)
Longest span70 ft (21.3 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,299 (2021)
Projected traffic6,299 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.2 mi (18 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-25W over I-75 S-Ntrchnge built?

It was built in 1966, making it 59 years old in 2025.

What condition is US-25W over I-75 S-Ntrchnge 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 March 2023.

How much traffic does US-25W over I-75 S-Ntrchnge carry?

About 6,299 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is US-25W over I-75 S-Ntrchnge?

The structure is 235 ft (71.6 m) long with a longest span of 70 ft (21.3 m) and a deck 34 ft wide.

Who owns US-25W over I-75 S-Ntrchnge?

It is owned by the State Highway Agency.