South Tongass HWY over Forks Creek
FairKetchikan Gateway Borough, Alaska · Mile Point 8.8 · Structure no. 4031
- Built
- 1938
- 87 years old, rebuilt 1954
- Condition
- Fair
- inspected June 2023
- Type
- Slab
- Concrete
- Length
- 28 ft
- 1 main span
- Daily traffic
- 820
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
South Tongass HWY over Forks Creek is a concrete slab carrying South Tongass HWY over Forks Creek in Ketchikan Gateway Borough, Alaska. It was built in 1938 and reconstructed in 1954, so it is 87 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 820 vehicles a day, roughly 13% of them trucks, projected to reach 1,750 by 2039. The structure is 28 ft (8.5 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was South Tongass HWY over Forks Creek built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1954.
What condition is South Tongass HWY over Forks 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 June 2023.
How much traffic does South Tongass HWY over Forks Creek carry?
About 820 vehicles per day (2020 count), of which roughly 13% are trucks.
How long is South Tongass HWY over Forks Creek?
The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 28 ft wide.
Who owns South Tongass HWY over Forks Creek?
It is owned by the State Highway Agency.