Irr:airport Road over Shageluk Slough
PoorYukon-Koyukuk Census Area, Alaska · Shageluk · Structure no. 1414
- Built
- 1978
- 47 years old
- Condition
- Poor
- inspected July 2024
- Type
- Truss - Thru
- Steel
- Length
- 127 ft
- 1 main span
- Daily traffic
- 11
- 2018 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Irr:airport Road over Shageluk Slough is a steel truss - thru carrying Irr:airport Road over Shageluk Slough in Yukon-Koyukuk Census Area, Alaska. It was built in 1978, so it is 47 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 11 vehicles a day, roughly 6% of them trucks, projected to reach 25 by 2035. The structure is 127 ft (38.7 m) long and 20 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Irr:airport Road over Shageluk Slough built?
It was built in 1978, making it 47 years old in 2025.
What condition is Irr:airport Road over Shageluk Slough 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 July 2024.
How much traffic does Irr:airport Road over Shageluk Slough carry?
About 11 vehicles per day (2018 count), of which roughly 6% are trucks.
How long is Irr:airport Road over Shageluk Slough?
The structure is 127 ft (38.7 m) long with a longest span of 126 ft (38.4 m) and a deck 20 ft wide.
Who owns Irr:airport Road over Shageluk Slough?
It is owned by the City or Municipal Highway Agency.