3 ms·
HS2 is projected to be higher. I searched around and it’s very hard to compare, though. Boston’s Big Dig had an underground section of a mile or two but the la
by shermantanktop 2y ago
HS2 is projected to be higher. I searched around and it’s very hard to compare, though. Boston’s Big Dig had an underground section of a mile or two but the larger project built something like 160 miles of highway.