I-5 over Southcenter Blvd
GoodKing County, Washington · 5.2 N JCT SR 516 · Structure no. 0007442B0000000
- Built
- 1965
- 60 years old
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 84 ft
- 1 main span
- Daily traffic
- 106,282
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 over Southcenter Blvd is a prestressed concrete stringer/multi-beam or girder carrying I-5 over Southcenter Blvd in King County, Washington. It was built in 1965, so it is 60 years old, older 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 106,282 vehicles a day, roughly 7% of them trucks, projected to reach 173,197 by 2039. The structure is 84 ft (25.6 m) long and 94 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-5 over Southcenter Blvd built?
It was built in 1965, making it 60 years old in 2025.
What condition is I-5 over Southcenter Blvd 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 July 2023.
How much traffic does I-5 over Southcenter Blvd carry?
About 106,282 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is I-5 over Southcenter Blvd?
The structure is 84 ft (25.6 m) long with a longest span of 84 ft (25.6 m) and a deck 94 ft wide.
Who owns I-5 over Southcenter Blvd?
It is owned by the State Highway Agency.