Detour signs direct people west on Pennsylvania, north on Rice, and east on Maryland.
The 10-mile line that connects Saint Paul, Maplewood, Landfall, Oakdale and Woodbury generally along I-94 began operation on Saturday. Buses run every 10 minutes on weekdays and every 15 minutes on weekends.
This winter, Ramsey County is committed to maintaining its 293-mile network of county roads, including clearing snow and ice.