US Bridges

I40 over I40 / Cedar Bluff RD

Fair

Knox County, Tennessee · 1 M NW of Cedar Bluff · Structure no. 47I00400013

Built
1993
32 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
224 ft
3 main spans
Daily traffic
166,251
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over I40 / Cedar Bluff RD is a steel continuous stringer/multi-beam or girder carrying I40 over I40 / Cedar Bluff RD in Knox County, Tennessee. It was built in 1993, so it is 32 years old, younger 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 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 166,251 vehicles a day, roughly 6% of them trucks, projected to reach 330,496 by 2041. The structure is 224 ft (68.3 m) long and 168 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI40
CrossesI40 / Cedar Bluff RD
Location1 M NW of Cedar Bluff
RouteInterstate 40
CountyKnox County
StateTennessee
Coordinates35.91784, -84.09103
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length224 ft (68.3 m)
Longest span144 ft (43.9 m)
Deck width168 ft (51.2 m)
Roadway width166 ft (50.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic166,251 (2021)
Projected traffic330,496 by 2041
Trucks6%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$9.1 million (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 over I40 / Cedar Bluff RD built?

It was built in 1993, making it 32 years old in 2025.

What condition is I40 over I40 / Cedar Bluff RD 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 October 2024.

How much traffic does I40 over I40 / Cedar Bluff RD carry?

About 166,251 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 over I40 / Cedar Bluff RD?

The structure is 224 ft (68.3 m) long with a longest span of 144 ft (43.9 m) and a deck 168 ft wide.

Who owns I40 over I40 / Cedar Bluff RD?

It is owned by the State Highway Agency.