KINGSPORT ‚¬ Traffic in the 400 block of Riverport Road will be controlled by flagmen as crews install new water and wastewater service connections in the area on Wednesday, December 4, 2013. Motorists accustomed to using Riverport should seek alternative routes during the work hours of 8 a.m. to 3:30 p.m. and use the utmost caution in the work zone.