US Bridges

I26 over SR 352 & So. Indian CR

Good

Unicoi County, Tennessee · 9.43 MI from Nc/Tn ST LN · Structure no. 86I00260057

Built
1994
31 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
606 ft
7 main spans
Daily traffic
7,310
2021 count
Owner
State
State Highway Agency

About this bridge

I26 over SR 352 & So. Indian CR is a prestressed concrete continuous stringer/multi-beam or girder carrying I26 over SR 352 & So. Indian CR in Unicoi County, Tennessee. It was built in 1994, so it is 31 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 7,310 vehicles a day, roughly 6% of them trucks, projected to reach 16,864 by 2040. The structure is 606 ft (184.6 m) long and 90 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesI26
CrossesSR 352 & So. Indian CR
Location9.43 MI from Nc/Tn ST LN
RouteInterstate 26
Coordinates36.071, -82.50418
Functional classRural 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans7
Design loadHS 20
Structure length606 ft (184.6 m)
Longest span94 ft (28.8 m)
Deck width90 ft (27.4 m)
Roadway width85 ft (25.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,310 (2021)
Projected traffic16,864 by 2040
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I26 over SR 352 & So. Indian CR built?

It was built in 1994, making it 31 years old in 2025.

What condition is I26 over SR 352 & So. Indian CR 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 November 2024.

How much traffic does I26 over SR 352 & So. Indian CR carry?

About 7,310 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I26 over SR 352 & So. Indian CR?

The structure is 606 ft (184.6 m) long with a longest span of 94 ft (28.8 m) and a deck 90 ft wide.

Who owns I26 over SR 352 & So. Indian CR?

It is owned by the State Highway Agency.