Live Chat I-93 Community Nearby Traffic 21 (Transport busstop) 2024-05-14 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to 21 (Transport Busstop) Chelsea, MA 2.92 Charlestown, MA 3.25 Winthrop, MA 4.03 Interstate highway exits close to 21 (Transport Busstop) Exit 24, i93 2.53 Exit 25, i93 2.63 Exit 23, i93 2.89 Interstate highways close to 21 (Transport Busstop) i93 map 2.53 i90 map 3.81 i95 map 15.89 State roads close to 21 (Transport Busstop) MA 1A map 0.53 MA 145 map 1.05 US 1 MA map 2.38