I-5 SB over Fallout Shelter
GoodKing County, Washington · 2.3 N JCT SR 520 · Structure no. 002004110000000
- Built
- 1963
- 62 years old
- Condition
- Good
- inspected September 2024
- Type
- Culvert
- Concrete
- Length
- 57 ft
- 1 main span
- Daily traffic
- 76,058
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 SB over Fallout Shelter is a concrete culvert carrying I-5 SB over Fallout Shelter in King County, Washington. It was built in 1963, so it is 62 years old, older than the Washington average of 49.8 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 76,058 vehicles a day, roughly 5% of them trucks, projected to reach 110,570 by 2039. The structure is 57 ft (17.4 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-5 SB over Fallout Shelter built?
It was built in 1963, making it 62 years old in 2025.
What condition is I-5 SB over Fallout Shelter 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 September 2024.
How much traffic does I-5 SB over Fallout Shelter carry?
About 76,058 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is I-5 SB over Fallout Shelter?
The structure is 57 ft (17.4 m) long with a longest span of 57 ft (17.4 m) and a deck 62 ft wide.
Who owns I-5 SB over Fallout Shelter?
It is owned by the State Highway Agency.