BOSTON — Urban forestry is a noble and necessary pursuit, yielding environmental and health benefits almost too numerous to count. …Urban forests, broadly speaking, also happen to be sources of large amounts of wood waste. The most recent estimates from the USDA Forest Service indicate that 46 million tons of sellable wood from urban areas is felled each year, most of which gets chipped, landfilled, or burned for energy. There is a missed opportunity afoot; not one of those pathways—with the possible exception of biomass power generation—involves making something of tangible value that’s inversely proportional to the amount of waste being generated. …Tridome Structures, a Massachusetts-based manufacturer of mass timber products, saw the gap in the Northeast market and acted accordingly. Only six months ago, the company opened a subsidiary mill operation called TimberWise in the town of Millis, a Boston suburb.