Jnu Douglas Br RD over Gastineau Channel
FairJuneau City and Borough, Alaska · Mile Point 0.1 · Structure no. 0740
- Built
- 1981
- 44 years old
- Condition
- Fair
- inspected June 2023
- Type
- Segmental Box Girder
- Prestressed Concrete Continuous
- Length
- 1,286 ft
- 3 main spans
- Daily traffic
- 12,800
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Jnu Douglas Br RD over Gastineau Channel is a prestressed concrete continuous segmental box girder carrying Jnu Douglas Br RD over Gastineau Channel in Juneau City and Borough, Alaska. It was built in 1981, so it is 44 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 12,800 vehicles a day, roughly 5% of them trucks, projected to reach 24,300 by 2039. The structure is 1,286 ft (392.1 m) long and 44 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Jnu Douglas Br RD over Gastineau Channel built?
It was built in 1981, making it 44 years old in 2025.
What condition is Jnu Douglas Br RD over Gastineau Channel 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 Jnu Douglas Br RD over Gastineau Channel carry?
About 12,800 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Jnu Douglas Br RD over Gastineau Channel?
The structure is 1,286 ft (392.1 m) long with a longest span of 620 ft (189 m) and a deck 44 ft wide.
Who owns Jnu Douglas Br RD over Gastineau Channel?
It is owned by the State Highway Agency.