US Bridges

I-75 NB over Wolf Creek

Fair

Whitley County, Kentucky · Nbl .8 MI S of Ky 628 Op · Structure no. 118B00060R

Built
1964
61 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Concrete Continuous
Length
214 ft
3 main spans
Daily traffic
16,501
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 NB over Wolf Creek is a concrete continuous tee beam carrying I-75 NB over Wolf Creek in Whitley County, Kentucky. It was built in 1964, so it is 61 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 16,501 vehicles a day, roughly 31% of them trucks, projected to reach 20,461 by 2043. The structure is 214 ft (65.2 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-75 NB
CrossesWolf Creek
LocationNbl .8 MI S of Ky 628 Op
RouteInterstate 75
CountyWhitley County
StateKentucky
Coordinates36.66333, -84.13611
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating73.4 US tons
Inventory rating44 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length214 ft (65.2 m)
Longest span90 ft (27.4 m)
Deck width38 ft (11.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,501 (2023)
Projected traffic20,461 by 2043
Trucks31%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-75 NB over Wolf Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is I-75 NB over Wolf Creek 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 February 2023.

How much traffic does I-75 NB over Wolf Creek carry?

About 16,501 vehicles per day (2023 count), of which roughly 31% are trucks.

How long is I-75 NB over Wolf Creek?

The structure is 214 ft (65.2 m) long with a longest span of 90 ft (27.4 m) and a deck 38 ft wide.

Who owns I-75 NB over Wolf Creek?

It is owned by the State Highway Agency.