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Board weighs Mary Drive upgrade amid stormwater-permit thresholds
Summary
Planning staff told the Select Board that adding a rural-road upgrade off Mary Drive would increase mapped impervious area from roughly 1.76 to about 1.82 acres, still under the 2.5-acre state threshold that triggers permit revision; the board asked staff to verify the numbers and obtain state confirmation in writing.
Planning staff briefed the Select Board on a proposed upgrade to a town-owned strip off Mary Drive to rural-road standards and the stormwater-permit implications of added impervious surface.
Staff said the current mapped impervious area in the subdivision permit is 1.76 acres. The proposed road upgrade would add about 2,880 square feet, increasing the recorded total to roughly 1.82 acres — under the 2.5-acre trigger for a general-permit revision. Staff said they would verify the as-built mapping and secure written confirmation from the state that the additional impervious area can be rolled into the existing permit before the project proceeds. Board members emphasized clear communication with adjoining homeowners about what upgrades would mean for grading, banks and septic leach fields adjacent to the road.
