Dorchester District 2 schools begin announcing prom plans Two of the three Dorchester County School District 2 high schools have released dates for their senior proms. (Source: Storyblocks) By Patrick Phillips | April 21, 2021 at 1:24 PM EDT - Updated April 21 at 1:24 PM SUMMERVILLE, S.C. (WCSC) - The three high schools within Dorchester County School District 2 are beginning to confirm dates for their senior proms. Ashley Ridge High School posted on its Facebook page Wednesday morning it would hold its prom on May 30 at the North Charleston Convention Center. Summerville High School previously said it would hold its prom on June 11. Fort Dorchester High School has not yet released an official date for its prom.