Dangerous River RD over Ahrnklin River
FairYakutat City and Borough, Alaska · Mile Point 24.8 · Structure no. 1229
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 160 ft
- 3 main spans
- Daily traffic
- 40
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Dangerous River RD over Ahrnklin River is a steel continuous stringer/multi-beam or girder carrying Dangerous River RD over Ahrnklin River in Yakutat City and Borough, Alaska. It was built in 1974, so it is 51 years old, older than the Alaska average of 35.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 40 vehicles a day, roughly 33% of them trucks, projected to reach 50 by 2039. The structure is 160 ft (48.8 m) long and 29 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dangerous River RD over Ahrnklin River built?
It was built in 1974, making it 51 years old in 2025.
What condition is Dangerous River RD over Ahrnklin River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does Dangerous River RD over Ahrnklin River carry?
About 40 vehicles per day (2020 count), of which roughly 33% are trucks.
How long is Dangerous River RD over Ahrnklin River?
The structure is 160 ft (48.8 m) long with a longest span of 60 ft (18.3 m) and a deck 29 ft wide.
Who owns Dangerous River RD over Ahrnklin River?
It is owned by the State Highway Agency.