High Quality Content by WIKIPEDIA articles! State Road 15 (commonly SR 15) is part of the Florida State Road System. It runs from SR 80/SR 880 at Belle Glade north along the east shore of Lake Okeechobee to Okeechobee. Then it runs north to SR 500 (US 192) at Holopaw, and northwest along SR 500 to Ashton (east of St. Cloud), where it ends.