Roundabout Details
Dunn Rd. / I-270 WB Ramps
- Type
- Roundabout
- Status
- Existing
- Functional Class
- Freeway Ramps (Grade-Separated)
- Lane Type
- Multilane (2 Lane, 2x1 max)
- Control Type
- All-Way Yield
- Previous Control Type
- Signal
- Other Control Type
- None
- Approaches
- 3
- Driveways
- 0
- Diameter (ICD)
- 51.82 m
- City
- Spanish Lake
- County
- St. Louis Co.
- State
- MO
- Country
- United States
- Latitude
- 38.77088
- Longitude
- -90.22381
- Year Completed
- 2020
- Notes
- Left-turn-only lane on east leg. Little deflection westbound.