South Tongass HWY over Herring Cove
GoodKetchikan Gateway Borough, Alaska · Mile Point 10.7 · Structure no. 0253
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected June 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 131 ft
- 1 main span
- Daily traffic
- 820
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
South Tongass HWY over Herring Cove is a prestressed concrete tee beam carrying South Tongass HWY over Herring Cove in Ketchikan Gateway Borough, Alaska. It was built in 2022, so it is 3 years old, younger than the Alaska average of 35.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 820 vehicles a day, roughly 13% of them trucks, projected to reach 1,750 by 2039. The structure is 131 ft (40 m) long and 49 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was South Tongass HWY over Herring Cove built?
It was built in 2022, making it 3 years old in 2025.
What condition is South Tongass HWY over Herring Cove 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 June 2023.
How much traffic does South Tongass HWY over Herring Cove carry?
About 820 vehicles per day (2020 count), of which roughly 13% are trucks.
How long is South Tongass HWY over Herring Cove?
The structure is 131 ft (40 m) long with a longest span of 128 ft (39 m) and a deck 49 ft wide.
Who owns South Tongass HWY over Herring Cove?
It is owned by the State Highway Agency.