I-405 Nbcd over North Creek
GoodKing County, Washington · 0.6 N JCT SR 522 · Structure no. 0015054A0000000
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected October 2021
- Type
- Slab
- Concrete Continuous
- Length
- 117 ft
- 3 main spans
- Daily traffic
- 11,022
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-405 Nbcd over North Creek is a concrete continuous slab carrying I-405 Nbcd over North Creek in King County, Washington. It was built in 1998, so it is 27 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 11,022 vehicles a day, roughly 7% of them trucks, projected to reach 16,279 by 2036. The structure is 117 ft (35.7 m) long and 59 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-405 Nbcd over North Creek built?
It was built in 1998, making it 27 years old in 2025.
What condition is I-405 Nbcd over North Creek 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 October 2021.
How much traffic does I-405 Nbcd over North Creek carry?
About 11,022 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is I-405 Nbcd over North Creek?
The structure is 117 ft (35.7 m) long with a longest span of 45 ft (13.7 m) and a deck 59 ft wide.
Who owns I-405 Nbcd over North Creek?
It is owned by the State Highway Agency.