I-5 S-W Ramp over Terrain
FairKing County, Washington · 5.6 N JCT SR 900 · Structure no. 0007741Q0000000
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 1,029 ft
- 12 main spans
- Daily traffic
- 19,202
- 2012 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 S-W Ramp over Terrain is a concrete continuous box beam or girders - multiple carrying I-5 S-W Ramp over Terrain in King County, Washington. It was built in 1967, so it is 58 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 19,202 vehicles a day, roughly 5% of them trucks, projected to reach 32,106 by 2036. The structure is 1,029 ft (313.6 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 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 S-W Ramp over Terrain built?
It was built in 1967, making it 58 years old in 2025.
What condition is I-5 S-W Ramp over Terrain 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 August 2024.
How much traffic does I-5 S-W Ramp over Terrain carry?
About 19,202 vehicles per day (2012 count), of which roughly 5% are trucks.
How long is I-5 S-W Ramp over Terrain?
The structure is 1,029 ft (313.6 m) long with a longest span of 94 ft (28.7 m) and a deck 26 ft wide.
Who owns I-5 S-W Ramp over Terrain?
It is owned by the State Highway Agency.