I always like the idea of megaprojects and several Utah legislators suggested this. It's kind of a dumb idea, though, when you think about it because the vast majority of Utah's diverted water is going towards farming alfalfa to feed livestock, so we could much more easily solve the problem by just importing these end products from a region that is better suited to their production than a desert.
Doesn’t scratch the itch, but I will concede that this is a fair point
If you want to do a megaproject, just cover a significant amount of the lake in reflective material. This will reduce evaporation, increasing the lake level. It would be very bad for the ecosystem, though, since it depends on sunlight.
Sounds like the northern part of the lake doesn't have much of an ecosystem anyway, so why not start there?
Or even better eliminating or at least reducing animal agriculture that aside from the ethical, health and global warming concerns, is a massive user of local resources relative to the non animal resources.