reinventingthewheel
Active Member
SEM mining of two tunnels from just south of Front st to just east of Cherry st, where the remaining stretch to the portal is cut and cover.If there's no TBMing south of Front, how are they getting to the portal? Doesn't seem like an area that can be done cut and cover.
They’re also using SEM to dig underneath Front st, too many utilities in the way just below street level.