NE 30th ST over SR 405
GoodKing County, Washington · 1.1 N JCT SR 900 · Structure no. 0011976A0000000
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 189 ft
- 3 main spans
- Daily traffic
- 6,937
- 2012 count
- Owner
- State
- State Highway Agency
About this bridge
NE 30th ST over SR 405 is a prestressed concrete continuous stringer/multi-beam or girder carrying NE 30th ST over SR 405 in King County, Washington. It was built in 1981, so it is 44 years old, younger 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 6,937 vehicles a day, roughly 8% of them trucks. The structure is 189 ft (57.6 m) long and 62 ft wide.
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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NE 30th ST over SR 405 built?
It was built in 1981, making it 44 years old in 2025.
What condition is NE 30th ST over SR 405 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 April 2024.
How much traffic does NE 30th ST over SR 405 carry?
About 6,937 vehicles per day (2012 count), of which roughly 8% are trucks.
How long is NE 30th ST over SR 405?
The structure is 189 ft (57.6 m) long with a longest span of 75 ft (22.9 m) and a deck 62 ft wide.
Who owns NE 30th ST over SR 405?
It is owned by the State Highway Agency.