Old Valdez Trail over Twenty-Three Mile Slough
FairFairbanks North Star Borough, Alaska · Mile Point 0.9 · Structure no. 2294
- Built
- 2004
- 21 years old
- Condition
- Fair
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Steel
- Length
- 45 ft
- 1 main span
- Daily traffic
- 10
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
Old Valdez Trail over Twenty-Three Mile Slough is a steel box beam or girders - multiple carrying Old Valdez Trail over Twenty-Three Mile Slough in Fairbanks North Star Borough, Alaska. It was built in 2004, so it is 21 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 1% of them trucks, projected to reach 12 by 2035. The structure is 45 ft (13.7 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old Valdez Trail over Twenty-Three Mile Slough built?
It was built in 2004, making it 21 years old in 2025.
What condition is Old Valdez Trail over Twenty-Three Mile 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 2024.
How much traffic does Old Valdez Trail over Twenty-Three Mile Slough carry?
About 10 vehicles per day (2018 count), of which roughly 1% are trucks.
How long is Old Valdez Trail over Twenty-Three Mile Slough?
The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.3 m) and a deck 16 ft wide.
Who owns Old Valdez Trail over Twenty-Three Mile Slough?
It is owned by the County Highway Agency.