Beach Nourishment is Coming to Treasure Island! Pinellas County Government is set to begin beach nourishment on Treasure Island's beaches next week (Nov. 3). If you’ve noticed heavy equipment near Sunset Beach, it's because work is already in progress at Upham Beach and will move north to Treasure Island. Once the nourishment of Upham Beach is almost complete, crews will start working on Sunset Beach, followed by Sunshine Beach at the northern end of the island. Fortunately, Treasure Island's ma