Live Chat I-40 Community Nearby Traffic 21st St SW is closed from Cumberland Ave to Lake Ave. 2024-06-06 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to 21st St SW Is Closed From Cumberland Ave To Lake Ave. Corryton, TN 14.08 Powell, TN 14.20 Mascot, TN 14.24 Interstate highway exits close to 21st St SW Is Closed From Cumberland Ave To Lake Ave. Exit 8, i640tn 1.21 Exit 392, i40 2.94 Exit 393, i40 3.00 Interstate highways close to 21st St SW Is Closed From Cumberland Ave To Lake Ave. i640tn map 1.21 i40 map 2.94 i75 map 7.54 State roads close to 21st St SW Is Closed From Cumberland Ave To Lake Ave. TN 331 map 2.26 US 441 TN map 3.67 US 70 TN map 3.71