Commission approves DPW bank repairs on Alderbrook and Rosemary Brooks to clear blockages

The Conservation Commission approved DPW maintenance work at two stream locations — behind 82 Sutton Road (Alderbrook) and behind 1389 Great Plain Avenue (Rosemary Brook) — to address failed stone walls and debris that are impeding flow.

Mike of the Department of Public Works described collapsed stone-wall sections that have washed into the channel and are creating blockages and local sedimentation. He said crews will perform handwork to remove displaced stone, place crushed-stone base where needed, and reset boulders so the channel can convey flows without obstruction. Mike said the work is meant to be a modest repair until the town can complete larger, engineered stream projects.

Commissioners asked about causes and long-term fixes. Mike attributed failures to a mix of age, soil conditions and prior armoring of channels; he said the town’s larger stormwater program will study more permanent solutions. The commission voted to approve the DPW notification under its general-permit process, and staff will document the work and confirm limits to avoid disturbance to adjacent wetland areas.