Seward Highway over Colorado Creek
GoodKenai Peninsula Borough, Alaska · Mile Point 45.6 · Structure no. 4012
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected August 2023
- Type
- Culvert
- Steel
- Length
- 35 ft
- 3 main spans
- Daily traffic
- 3,490
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Seward Highway over Colorado Creek is a steel culvert carrying Seward Highway over Colorado Creek in Kenai Peninsula Borough, Alaska. It was built in 1983, so it is 42 years old, older 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 3,490 vehicles a day, roughly 2% of them trucks, projected to reach 3,970 by 2039. The structure is 35 ft (10.7 m) long. 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Seward Highway over Colorado Creek built?
It was built in 1983, making it 42 years old in 2025.
What condition is Seward Highway over Colorado 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 August 2023.
How much traffic does Seward Highway over Colorado Creek carry?
About 3,490 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Seward Highway over Colorado Creek?
The structure is 35 ft (10.7 m) long with a longest span of 10 ft (2.9 m).
Who owns Seward Highway over Colorado Creek?
It is owned by the State Highway Agency.