The 4th annual SoNo Half Marathon and 5K will take place on Saturday, October 20, 2018. Temporary road closures will take place in South Norwalk between 9 a.m. until 10:30 a.m. Exit 16 northbound on Interstate 95 will be closed between 9:30 a.m. and 11:30 a.m. Additionally, lane restrictions and detours are planned for other areas of Norwalk. Those who live, work, or plan to visit are advised to seek alternate routes. For more details on which roads will be closed, visit sonohalf.com/roadclosures.