Lake Wa BLVD/112th over I-405
GoodKing County, Washington · 3.8 N JCT SR 900 · Structure no. 0019242H0000000
- Built
- 2023
- 2 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 119 ft
- 1 main span
- Daily traffic
- 73,753
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Lake Wa BLVD/112th over I-405 is a prestressed concrete stringer/multi-beam or girder carrying Lake Wa BLVD/112th over I-405 in King County, Washington. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 73,753 vehicles a day, roughly 6% of them trucks, projected to reach 108,032 by 2039. The structure is 119 ft (36.4 m) long and 53 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lake Wa BLVD/112th over I-405 built?
It was built in 2023, making it 2 years old in 2025.
What condition is Lake Wa BLVD/112th over I-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 September 2024.
How much traffic does Lake Wa BLVD/112th over I-405 carry?
About 73,753 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Lake Wa BLVD/112th over I-405?
The structure is 119 ft (36.4 m) long with a longest span of 113 ft (34.3 m) and a deck 53 ft wide.
Who owns Lake Wa BLVD/112th over I-405?
It is owned by the State Highway Agency.