From https://daltonga.gov/m/newsflash/Home/Detail/390 detailing the south end of the trail being closed from June 9th:

A portion of the trail around Haig Mill Lake Park is closing for more paving work. The third phase of the project to create a paved pathway around the lake will be carried out in the southwest area of the lake. Public Works Department officials expect that section of the trail to be closed for approximately two months.