06-29-2021, 10:22 AM
(06-28-2021, 07:16 PM)danbrotherston Wrote:(06-28-2021, 07:11 PM)KevinL Wrote: Another downside to a tunnel is that it may run into drainage issues. I believe a watercourse transitions this area and the highway is already in a relatively low part of the landscape; digging even further down could run into a whole host of other issues.
There could be drainage issues, I'm not a hygrologist, and I haven't looked at the area. That could add cost and complexity to be sure.
All I know is that a 1/4 km long bridge and causeway is very far from my preferred option, it squanders the opportunity to expand the greenspace, as well as limits the transportation connectivity options, and frankly, a 1/4 km long bridge is just not likely to be a particularly pleasant experience, summer or winter.
Is there a reason why we need 100m+ ramps at both ends? Could we not put in stairs and an elevator (and/or escalator)? It would take far less space, and the elevator likely costs much less than 100m of concrete ramp.