The city of Johns Creek Founders Day Parade at 10 a.m. Saturday along State Bridge Road will necessitate some driver detours.

The event celebrating the city’s 2006 incorporation will feature 86 units, more than 2,000 participants and a 10,000-strong spectator crowd.

City officials say the parade route will be closed in three stages from south to north along State Bridge until the entire 1.4 mile route between Morton and Kimball Bridge roads is blocked off. Roadblocks are expected to start at around 8 a.m. and should be lifted by noon.

Motorists are encouraged to use Abbotts Bridge and McGinnis Ferry roads as alternates.