US Bridges

I26 over SR 381

Good

Washington County, Tennessee · East of Johnson City · Structure no. 90I00260029

Built
1999
26 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
394 ft
3 main spans
Daily traffic
60,503
2021 count
Owner
State
State Highway Agency

About this bridge

I26 over SR 381 is a steel continuous stringer/multi-beam or girder carrying I26 over SR 381 in Washington County, Tennessee. It was built in 1999, so it is 26 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 60,503 vehicles a day, roughly 6% of them trucks, projected to reach 72,664 by 2042. The structure is 394 ft (120 m) long and 112 ft wide.

CarriesI26
CrossesSR 381
LocationEast of Johnson City
RouteInterstate 26
Coordinates36.35546, -82.39747
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 inspectionSeptember 2023
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 rating98.2 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length394 ft (120 m)
Longest span174 ft (53 m)
Deck width112 ft (34.2 m)
Roadway width108 ft (32.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,503 (2021)
Projected traffic72,664 by 2042
Trucks6%
Lanes on structure4
Traffic directionTwo-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 I26 over SR 381 built?

It was built in 1999, making it 26 years old in 2025.

What condition is I26 over SR 381 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 September 2023.

How much traffic does I26 over SR 381 carry?

About 60,503 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I26 over SR 381?

The structure is 394 ft (120 m) long with a longest span of 174 ft (53 m) and a deck 112 ft wide.

Who owns I26 over SR 381?

It is owned by the State Highway Agency.