When managing a section of roadway under construction or being closed for a major event, follow the Wiki guidelines on [zones] and https://wiki.waze.com/wiki/Road_closures. You can use The US Road Closure Form to submit any closure longer than a few days.
The South Carolina Department of Transportation maintains a website regarding road closures throughout the state. Please use this link to access that site.
We also maintain a google sheet of the closures in the state. If you submit a closure, please add some or all of the information to that page.