Originally Posted by Novacek
Okay, found one (not sure if this is the one I saw before).
The "Project Connect Central Corridor Update." (direct link doesn't seem to work).
It has a profile of the tunnel options they looked at. They don't go into if they were planning cut and cover or not (presumably not with the section under the lake?). But it appears that once you get up to 17th, it's about at the same altitude as Cesar Chavez.
Agenda Item #60 of 79 on your link, it took me a while to find it. While that drawing shows the tunnel options, it didn't provide the depth in measurable units. Considering all the tunneling options included going under the lake, I'm certain they didn't consider cut and cover there.
Another interesting data point was projected ridership, with the much cheaper BRT almost the same as light rail over the same alignment.