Danville’s Long Mill Dam is coming down after the City Council approves the removal by a 6-3 vote. According to the Register & Bee removing the dam between the White Mill Building and the Danville Area Family YMCA would bring state and federal permitting advantages to a pair of projects. Removing the dam is estimated to cost between $100,000 and $200,000. The dam was built in the early 1800s and stretches more than 1,000 feet.