Murphy Dome Road over Spinach Creek
FairFairbanks North Star Borough, Alaska · Mile Point 8.1 · Structure no. 0359
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 61 ft
- 1 main span
- Daily traffic
- 550
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Murphy Dome Road over Spinach Creek is a steel stringer/multi-beam or girder carrying Murphy Dome Road over Spinach Creek in Fairbanks North Star Borough, Alaska. It was built in 1965, so it is 60 years old, older 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 6 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 550 vehicles a day, roughly 4% of them trucks, projected to reach 670 by 2039. The structure is 61 ft (18.5 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Murphy Dome Road over Spinach Creek built?
It was built in 1965, making it 60 years old in 2025.
What condition is Murphy Dome Road over Spinach Creek 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 Murphy Dome Road over Spinach Creek carry?
About 550 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is Murphy Dome Road over Spinach Creek?
The structure is 61 ft (18.5 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.
Who owns Murphy Dome Road over Spinach Creek?
It is owned by the State Highway Agency.