US Bridges

I75 Rl&ll over I75 /SR-9 (clinton Hwy)

Good

Knox County, Tennessee · At Sharps Gap Exchange · Structure no. 47I00750025

Built
1981
44 years old, rebuilt 2008
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
2 main spans
Daily traffic
94,386
2021 count
Owner
State
State Highway Agency

About this bridge

I75 Rl&ll over I75 /SR-9 (clinton Hwy) is a steel continuous stringer/multi-beam or girder carrying I75 Rl&ll over I75 /SR-9 (clinton Hwy) in Knox County, Tennessee. It was built in 1981 and reconstructed in 2008, so it is 44 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 94,386 vehicles a day, roughly 6% of them trucks, projected to reach 154,752 by 2041. The structure is 180 ft (54.9 m) long and 118 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI75 Rl&ll
CrossesI75 /SR-9 (clinton Hwy)
LocationAt Sharps Gap Exchange
RouteInterstate 75
Coordinates35.99848, -83.96025
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length180 ft (54.9 m)
Longest span94 ft (28.7 m)
Deck width118 ft (36 m)
Roadway width116 ft (35.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic94,386 (2021)
Projected traffic154,752 by 2041
Trucks6%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I75 Rl&ll over I75 /SR-9 (clinton Hwy) built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2008.

What condition is I75 Rl&ll over I75 /SR-9 (clinton Hwy) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does I75 Rl&ll over I75 /SR-9 (clinton Hwy) carry?

About 94,386 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I75 Rl&ll over I75 /SR-9 (clinton Hwy)?

The structure is 180 ft (54.9 m) long with a longest span of 94 ft (28.7 m) and a deck 118 ft wide.

Who owns I75 Rl&ll over I75 /SR-9 (clinton Hwy)?

It is owned by the State Highway Agency.