NE 185th ST over I-5
FairKing County, Washington · 2.1 N JCT SR 523 · Structure no. 0007299C0000000
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 249 ft
- 4 main spans
- Daily traffic
- 9,704
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
NE 185th ST over I-5 is a concrete continuous box beam or girders - multiple carrying NE 185th ST over I-5 in King County, Washington. It was built in 1964, 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 9,704 vehicles a day, roughly 5% of them trucks, projected to reach 15,255 by 2036. The structure is 249 ft (75.9 m) long and 60 ft wide. If it were closed, the detour would be 1.9 mi (3 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 NE 185th ST over I-5 built?
It was built in 1964, making it 61 years old in 2025.
What condition is NE 185th ST over I-5 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 NE 185th ST over I-5 carry?
About 9,704 vehicles per day (2010 count), of which roughly 5% are trucks.
How long is NE 185th ST over I-5?
The structure is 249 ft (75.9 m) long with a longest span of 75 ft (22.9 m) and a deck 60 ft wide.
Who owns NE 185th ST over I-5?
It is owned by the State Highway Agency.