Chilmark voters  go to the polls today for the annual town election. The ballot features four questions, including three spending items related to repairs at the West Tisbury School and funding for the Massachusetts Estuary Project pond study. Voters will also be asked to weigh in on a non-binding referendum on the proposed Oak Bluffs roundabout. Chilmark Store owner Bill Rossi is running unopposed for an open seat on the board of selectmen. Polls are open from noon to 8 p.m. at the Chilmark Community Center.