The replacement of a retaining wall on South Main Street may not actually start until the spring of 2021. The need to replace the wall is due to the collapse of a 15-foot-by-10 foot section of the original stone wall in November 2018. A temporary cinder block wall was installed for safety. DOT officials said they do not know how old the original wall is because its construction predates mapping. The project is estimated to cost $750,000, but the state is covering all of it because Main Street is also Route 6, a state road.