
Better in ice than its reputation suggests — in the ISA's Urbana ice-storm survey sugar maple showed little severe damage, because its coarse, relatively low-density branching sheds ice load better than fine-twigged species. When a sugar maple does fail here it is almost always decay-driven or a split at an old codominant fork with included bark, not general brittleness, so the inspection is about unions and cavities rather than crown weight.
Late-winter cuts make it bleed sap heavily; harmless to the tree but it stains drives and alarms homeowners, so most crews here take structural work mid-to-late summer (roughly July into August) once the growth flush has hardened off. The species-specific trap is that sugar maple closes large wounds slowly and poorly — the right approach is small correctional cuts every few years, not one big reduction after twenty years of neglect, because those big cuts become decay columns.