Sterling Highway over South Fork Anchor River
PoorKenai Peninsula Borough, Alaska · Mile Point 120.7 · Structure no. 0666
- Built
- 1959
- 66 years old, rebuilt 1963
- Condition
- Poor
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 82 ft
- 1 main span
- Daily traffic
- 3,490
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Sterling Highway over South Fork Anchor River is a steel stringer/multi-beam or girder carrying Sterling Highway over South Fork Anchor River in Kenai Peninsula Borough, Alaska. It was built in 1959 and reconstructed in 1963, so it is 66 years old, older than the Alaska average of 35.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 3,490 vehicles a day, roughly 11% of them trucks, projected to reach 4,070 by 2039. The structure is 82 ft (25 m) long and 33 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sterling Highway over South Fork Anchor River built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1963.
What condition is Sterling Highway over South Fork Anchor River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.
How much traffic does Sterling Highway over South Fork Anchor River carry?
About 3,490 vehicles per day (2020 count), of which roughly 11% are trucks.
How long is Sterling Highway over South Fork Anchor River?
The structure is 82 ft (25 m) long with a longest span of 79 ft (24.2 m) and a deck 33 ft wide.
Who owns Sterling Highway over South Fork Anchor River?
It is owned by the State Highway Agency.