I-5 over Interurban Ave
FairKing County, Washington · 0.1 N JCT SR 599 · Structure no. 0007618D0000000
- Built
- 1966
- 59 years old, rebuilt 1998
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 149 ft
- 3 main spans
- Daily traffic
- 86,409
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 over Interurban Ave is a prestressed concrete stringer/multi-beam or girder carrying I-5 over Interurban Ave in King County, Washington. It was built in 1966 and reconstructed in 1998, so it is 59 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 86,409 vehicles a day, roughly 7% of them trucks, projected to reach 129,041 by 2039. The structure is 149 ft (45.3 m) long and 77 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 Interurban Ave built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1998.
What condition is I-5 over Interurban Ave 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 July 2024.
How much traffic does I-5 over Interurban Ave carry?
About 86,409 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is I-5 over Interurban Ave?
The structure is 149 ft (45.3 m) long with a longest span of 63 ft (19.1 m) and a deck 77 ft wide.
Who owns I-5 over Interurban Ave?
It is owned by the State Highway Agency.