Leaves and needles that clog local gutters
Forests blanket much of the region, dropping constant organic material into residential drainage channels. Broadleaf varieties like sugar maple, red maple, American beech, white birch, and northern red oak drop heavy carpets of leaves, while conifers like eastern white pine and eastern hemlock release fine needles year-round. In spring, maple seed wings fill the channels, followed by acorns in late summer. A dense mat of pine needles and fallen leaves seals off downspout outlets, holding water inside the trough. Leaf drop usually peaks in early October, filling unprotected systems right before the first major winter snowstorms freeze the trapped water solid along the roofline.