US Bridges

I40 over Youngs Creek

Fair

Roane County, Tennessee · .4 M NW JCT I40&SR326 · Structure no. 73I00400021

Built
1969
56 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
51,799
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over Youngs Creek is a concrete continuous culvert carrying I40 over Youngs Creek in Roane County, Tennessee. It was built in 1969, so it is 56 years old, older than the Tennessee average of 47.4 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 51,799 vehicles a day, roughly 6% of them trucks, projected to reach 80,016 by 2040. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesI40
CrossesYoungs Creek
Location.4 M NW JCT I40&SR326
RouteInterstate 40
CountyRoane County
StateTennessee
Coordinates35.87315, -84.45129
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,799 (2021)
Projected traffic80,016 by 2040
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$398,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I40 over Youngs Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is I40 over Youngs 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 September 2024.

How much traffic does I40 over Youngs Creek carry?

About 51,799 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 over Youngs Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns I40 over Youngs Creek?

It is owned by the State Highway Agency.