Comments:
One breached dam and one intact dam in reach, 2 bridges. Owner of intact (DS) dam has applied for permits for hydro generation but has not succeeded; dam previously supplied power for woodworking and grist mill at different times. Mill Bridge just DS of this dam was knocked off by ice in 1998; ice jam progressively backed up and eventually lifted bridge off abutments. Many boulders deposited downstream of the (US) breached dam indicated a change in dominant substrate type for ~300 ft. Ph 1 indicated reference Plane bed, and it might be a coarse plane bed under reference conditions but channel changes are long-standing and hence difficult to know. Bed is clearly heavily sedimented at this point in time - combination sedimented riffles and heavily sedimented plane bed (muck). Cumulative incremental development impacts US of Rte 110 bridge have increased flood risk to DS portions of reach.