US Bridges

I-75 Nc over Ky 836

Fair

Whitley County, Kentucky · 1.8 MI N of S-Ntrch US25W · Structure no. 118B00046L

Built
1967
58 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
172 ft
4 main spans
Daily traffic
19,110
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 Nc over Ky 836 is a concrete tee beam carrying I-75 Nc over Ky 836 in Whitley 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.

It carries about 19,110 vehicles a day, roughly 27% of them trucks, projected to reach 23,696 by 2043. The structure is 172 ft (52.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-75 Nc
CrossesKy 836
Location1.8 MI N of S-Ntrch US25W
RouteInterstate 75
CountyWhitley County
StateKentucky
Coordinates36.82, -84.16528
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating74.6 US tons
Inventory rating44.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span52 ft (15.7 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,110 (2023)
Projected traffic23,696 by 2043
Trucks27%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$860,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 Nc over Ky 836 built?

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

What condition is I-75 Nc over Ky 836 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 I-75 Nc over Ky 836 carry?

About 19,110 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is I-75 Nc over Ky 836?

The structure is 172 ft (52.4 m) long with a longest span of 52 ft (15.7 m) and a deck 42 ft wide.

Who owns I-75 Nc over Ky 836?

It is owned by the State Highway Agency.