THE THUNDERRIDGE GRIZZLY BEAR BACKER CLUB "GBBC" SERVES AS THE BOOSTER CLUB FOR MORE THAN 40 SPORTS CLUBS AND ACTIVITIES AT THUNDERRIDGE HIGH SCHOOL. IT IS COMPRISED OF MEMBERS MANAGED BY AN ELECTED BOARD OF DIRECTORS AND SERVES STUDENTS COACHES SPONSORS AND SPORT PARTICIPANTS BY HELPING TO MANAGE THE SUPPLEMENTAL FINANCIAL NEEDS OF THE PROGRAMS.