I-5 over NE Northgate Way
FairKing County, Washington · 2.0 N JCT SR 522 · Structure no. 0012197A0000000
- Built
- 1964
- 61 years old, rebuilt 1983
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 166 ft
- 3 main spans
- Daily traffic
- 89,154
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 over NE Northgate Way is a prestressed concrete stringer/multi-beam or girder carrying I-5 over NE Northgate Way in King County, Washington. It was built in 1964 and reconstructed in 1983, so it is 61 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 89,154 vehicles a day, roughly 5% of them trucks, projected to reach 133,065 by 2039. The structure is 166 ft (50.6 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 I-5 over NE Northgate Way built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1983.
What condition is I-5 over NE Northgate Way in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.
How much traffic does I-5 over NE Northgate Way carry?
About 89,154 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is I-5 over NE Northgate Way?
The structure is 166 ft (50.6 m) long with a longest span of 80 ft (24.4 m) and a deck 75 ft wide.
Who owns I-5 over NE Northgate Way?
It is owned by the State Highway Agency.