Roundabout Details
S 308th St. / 14th Ave. S
- Type
- Roundabout
- Status
- Existing
- Functional Class
- Other (At-Grade)
- Lane Type
- Single-lane w/ Traversable Central Island
- Control Type
- All-Way Yield
- Previous Control Type
- One/Two-Way Stop
- Other Control Type
- Rectangular Rapid Flashing Beacon (RRFB)
- Approaches
- 4
- Driveways
- 0
- Diameter (ICD)
- 19.51 m
- City
- Federal Way
- County
- King Co.
- State
- WA
- Country
- United States
- Latitude
- 47.32601
- Longitude
- -122.31601
- Year Completed
- 2014
- Notes
- This is a mini-roundabout with fully traversable center island. Inscribed diameter is about 64 feet, opened in August 2014. An RRFB is present at the school crossing on the east leg; the previous raised crosswalk was removed. The north leg is a driveway to the newly remodeled high school. Both streets are Minor Collectors with 25 mph speed limits.