UPDATE 12/19/16—Closures and Detours​ The following American River Parkway closures will remain in place until further notice: Discovery Park, Watt and Howe access, the PCA Bridge (Lower Sunrise Area) and the American River Parkway multi-use trail from Mile 0-5. The Gristmill boat launch is closed, although park access is open. There is a detour in … Continue reading Closures and Detours​ UPDATE