Mitkof Highway over Twin Creek
GoodPetersburg Census Area, Alaska · Mile Point 6.6 · Structure no. 0960
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected May 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 95 ft
- 1 main span
- Daily traffic
- 760
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Mitkof Highway over Twin Creek is a prestressed concrete tee beam carrying Mitkof Highway over Twin Creek in Petersburg Census Area, Alaska. It was built in 1996, so it is 29 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 760 vehicles a day, roughly 10% of them trucks, projected to reach 1,200 by 2039. The structure is 95 ft (29 m) long and 35 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 | 8 Very Good | 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 Mitkof Highway over Twin Creek built?
It was built in 1996, making it 29 years old in 2025.
What condition is Mitkof Highway over Twin 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 May 2023.
How much traffic does Mitkof Highway over Twin Creek carry?
About 760 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is Mitkof Highway over Twin Creek?
The structure is 95 ft (29 m) long with a longest span of 92 ft (28 m) and a deck 35 ft wide.
Who owns Mitkof Highway over Twin Creek?
It is owned by the State Highway Agency.