Bostwick Lake Road over Bostwick No. 6
FairKetchikan Gateway Borough, Alaska · Mile Point 3.5 · Structure no. 2351
- Built
- 2006
- 19 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 38 ft
- 1 main span
- Daily traffic
- 10
- 2018 count
- Owner
- State
- State Park, Forest, or Reservation Agency
About this bridge
Bostwick Lake Road over Bostwick No. 6 is a wood or timber stringer/multi-beam or girder carrying Bostwick Lake Road over Bostwick No. 6 in Ketchikan Gateway Borough, Alaska. It was built in 2006, so it is 19 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 70% of them trucks, projected to reach 15 by 2035. The structure is 38 ft (11.6 m) long and 25 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Bostwick Lake Road over Bostwick No. 6 built?
It was built in 2006, making it 19 years old in 2025.
What condition is Bostwick Lake Road over Bostwick No. 6 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 Bostwick Lake Road over Bostwick No. 6 carry?
About 10 vehicles per day (2018 count), of which roughly 70% are trucks.
How long is Bostwick Lake Road over Bostwick No. 6?
The structure is 38 ft (11.6 m) long with a longest span of 38 ft (11.5 m) and a deck 25 ft wide.
Who owns Bostwick Lake Road over Bostwick No. 6?
It is owned by the State Park, Forest, or Reservation Agency.