Interstate 93 becomes a super two in what major mountain pass that runs through the White Mountains of New Hampshire?
Super two A super two, super two-lane highway or wide two lane, in the United States, is a two-lane surface road built to highway standards, typically including partial control of access, occasional passing lanes and hard shoulders. It is often built for eventual conversion to freeway or at least divided highway status once traffic volumes rise. It has also been used in cases where environmental concerns are prevalent, such as where Interstate 93 becomes a super two in Franconia Notch, New Hampshire.
New Hampshire Route 129 New Hampshire Route 129 (abbreviated NH 129) is an 8.724 mi secondary east–west state highway in New Hampshire. The road runs between Loudon and Gilmanton.