US Bridges

I0026 over I-26 WB / SR-359

Good

Carter County, Tennessee · .74 M N Unicoi CO LN · Structure no. 10I00260008

Built
1986
39 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
200 ft
2 main spans
Daily traffic
23,569
2021 count
Owner
State
State Highway Agency

About this bridge

I0026 over I-26 WB / SR-359 is a concrete continuous box beam or girders - single or spread carrying I0026 over I-26 WB / SR-359 in Carter County, Tennessee. It was built in 1986, so it is 39 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 23,569 vehicles a day, roughly 6% of them trucks, projected to reach 29,142 by 2041. The structure is 200 ft (61 m) long and 44 ft wide.

CarriesI0026
CrossesI-26 WB / SR-359
Location.74 M N Unicoi CO LN
RouteInterstate 26
Coordinates36.27043, -82.32048
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length200 ft (61 m)
Longest span100 ft (30.5 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,569 (2021)
Projected traffic29,142 by 2041
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0026 over I-26 WB / SR-359 built?

It was built in 1986, making it 39 years old in 2025.

What condition is I0026 over I-26 WB / SR-359 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 April 2023.

How much traffic does I0026 over I-26 WB / SR-359 carry?

About 23,569 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I0026 over I-26 WB / SR-359?

The structure is 200 ft (61 m) long with a longest span of 100 ft (30.5 m) and a deck 44 ft wide.

Who owns I0026 over I-26 WB / SR-359?

It is owned by the State Highway Agency.