 but we do not expect this partially treated water to be a significant health concern. The 4th of July fireworks celebration at Watson Lake will take place with the following minor traffic flow changes. Entry into the event can be accessed from southbound State 89 via the detour into Watson Lake or via eastbound Willow Lake Road. Northbound State Route 89 will be closed at the Watson Lake roundabout. All ADA and VIP parking vehicles will be directed to westbound Willow Lake Road.