Tanana Bridge Road over Boundry Slough
FairFairbanks North Star Borough, Alaska · 1.0 KM W-Sw Tanana R Br · Structure no. DAPPACTFTOUNDRY
- Built
- 2012
- 13 years old
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 160 ft
- 3 main spans
- Daily traffic
- 10
- 2023 count
- Owner
- Federal
- Army
About this bridge
Tanana Bridge Road over Boundry Slough is a steel stringer/multi-beam or girder carrying Tanana Bridge Road over Boundry Slough in Fairbanks North Star Borough, Alaska. It was built in 2012, so it is 13 years old, younger than the Alaska average of 35.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 10 by 2044. The structure is 160 ft (48.8 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Tanana Bridge Road over Boundry Slough built?
It was built in 2012, making it 13 years old in 2025.
What condition is Tanana Bridge Road over Boundry Slough 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 August 2023.
How much traffic does Tanana Bridge Road over Boundry Slough carry?
About 10 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Tanana Bridge Road over Boundry Slough?
The structure is 160 ft (48.8 m) long with a longest span of 38 ft (11.6 m) and a deck 30 ft wide.
Who owns Tanana Bridge Road over Boundry Slough?
It is owned by the Army.