Might be silver maple - shaggy light gray bark, leaves are deeply notched, moreso than red, sugar, Norway maples. Fall color is a weak yellow-green. Many silver maples have major forks at 10,20,30' above ground. In nature they do well in moist areas, especially along/near watercourses, but they're also frequently planted along streets - fast growing, resistant (for a maple) to salt/gunk, but vulnerable to ice/snow due to weak and somewhat brittle wood. Biggest tree in Maine (not yet officially measured) - assuming it's not been broken apart since last measured in 1996 - is a silver maple on the floodplain along the East Branch of the Penobscot. It was 98" in diameter at that 1996 taping, and when I saw it in 1990 it was 96" diameter, about 100' tall and 100' crown width.