Millar Street over Millar ST Viaduct
GoodKetchikan Gateway Borough, Alaska · Mile Point 0.1 · Structure no. 1781
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected June 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 75 ft
- 3 main spans
- Daily traffic
- 200
- 2018 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Millar Street over Millar ST Viaduct is a prestressed concrete slab carrying Millar Street over Millar 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 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 200 vehicles a day, roughly 1% of them trucks, projected to reach 240 by 2035. The structure is 75 ft (22.9 m) long and 28 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | 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 Millar Street over Millar ST Viaduct built?
It was built in 2011, making it 14 years old in 2025.
What condition is Millar Street over Millar 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 Millar Street over Millar ST Viaduct carry?
About 200 vehicles per day (2018 count), of which roughly 1% are trucks.
How long is Millar Street over Millar ST Viaduct?
The structure is 75 ft (22.9 m) long with a longest span of 33 ft (10.1 m) and a deck 28 ft wide.
Who owns Millar Street over Millar ST Viaduct?
It is owned by the City or Municipal Highway Agency.