Warren Street over Warren ST Viaduct
GoodKetchikan Gateway Borough, Alaska · Mile Point 0.1 · Structure no. 1780
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 71 ft
- 3 main spans
- Daily traffic
- 100
- 2018 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Warren Street over Warren ST Viaduct is a steel stringer/multi-beam or girder carrying Warren Street over Warren ST Viaduct in Ketchikan Gateway Borough, Alaska. It was built in 2011, so it is 14 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 100 vehicles a day, roughly 1% of them trucks, projected to reach 120 by 2035. The structure is 71 ft (21.6 m) long and 12 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 | 7 Good | Some minor problems. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Warren Street over Warren ST Viaduct built?
It was built in 2011, making it 14 years old in 2025.
What condition is Warren Street over Warren ST Viaduct 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 Warren Street over Warren ST Viaduct carry?
About 100 vehicles per day (2018 count), of which roughly 1% are trucks.
How long is Warren Street over Warren ST Viaduct?
The structure is 71 ft (21.6 m) long with a longest span of 20 ft (6.1 m) and a deck 12 ft wide.
Who owns Warren Street over Warren ST Viaduct?
It is owned by the City or Municipal Highway Agency.