Gravina Island HWY over Airport Creek
GoodKetchikan Gateway Borough, Alaska · Mile Point 4.6 · Structure no. 2198
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected June 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 100 ft
- 1 main span
- Daily traffic
- 60
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Gravina Island HWY over Airport Creek is a prestressed concrete tee beam carrying Gravina Island HWY over Airport Creek in Ketchikan Gateway Borough, Alaska. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 60 vehicles a day, roughly 15% of them trucks, projected to reach 73 by 2035. The structure is 100 ft (30.5 m) long and 39 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Gravina Island HWY over Airport Creek built?
It was built in 2019, making it 6 years old in 2025.
What condition is Gravina Island HWY over Airport Creek 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 Gravina Island HWY over Airport Creek carry?
About 60 vehicles per day (2018 count), of which roughly 15% are trucks.
How long is Gravina Island HWY over Airport Creek?
The structure is 100 ft (30.5 m) long with a longest span of 97 ft (29.5 m) and a deck 39 ft wide.
Who owns Gravina Island HWY over Airport Creek?
It is owned by the State Highway Agency.