I think you had too short a history, and too many outside influences, to say 'Only the fescue will survive my heat, my light, my shade, my watering practices, and my neighborhood influences (kids and dogs, or whatever). You said the shady mix took rather well: that process seems to have been interrupted. I'd start over. Go get a box of the same stuff, and plant it again. But this time, I assume, the grass will be fairly well left alone, to thrive or not thrive, based on light, watering, mowing, and the rest of what would be called 'cultural practices'. So start over: throw a bit of new stuff into the mix if you care to. But you're still at step one, it seems a little unfair to a given cultivar to say 'it didn't survive a couple months under the tarps, the piles, and the carpenters stomping around'. You have established, very well, that that mix is no good as a skidway. You haven't yet established that that mix is no good as a lawn.

Western wheatgrass isn't often listed as a turfgrass. Were they talking about western wheatgrass or crested wheatgrass (or streambank wheatgrass)? Streambank wheatgrass isn't normally found as far east as MN, so I didn't list it. I don't like crested wheatgrass very well. I don't like the color very much (too yellow) and the way it lives in low water conditions is to go in and out of dormancy very quickly Western wheatgrass deals with drought by having an extensive root system. So it has to be dry for a long time to go dormant (the native stuff in fields here usually goes dormant in mid July after no rain since the first week of June). It's not without faults, though. It's almost blue in color and has wider blades than most of your other options (with the exception of K31 tall fescue). I've seen native stands here under trees along the road that look like they'd keep it shaded most of the time. Most of this area is either zone 5 or 6, but at higher elevations, it's zone 4 and I've seen it growing there, too (native, no water at all except for snow, early spring and late fall rains). If you want something that is closer in color and blade width to a traditional lawn, western wheatgrass is not what you want, but if you want something that will stay green (or blue, anyway) with no water from the sprinklers, it'll do the job. The fescues will probably stay green in MN, so CRF + sheep fescue might give you a lawn that will stay green for the most part and look more like what you're used to seeing.

I think someone else would be more qualified to answer. I don't have a problem with them. I'm just not accustomed to Lesco selling individual varieties of bluegrass. They have a few, but not nearly enough selection. Mainly they sell bluegrass blends.

Creeping fescue may be great for some areas and/or desired types of lawn, but I have concerns about mine. I like nice tall, single-blade grasses but I have something that has invaded that turns my lawn into a mat of grass that is all interconnected at the roots. It takes over entire portions of my lawn, and while green in the summer, it dies and turns brown all winter and early spring. Hard to get rid of too. I'm trying to eliminate this creeping grass, and beginning to wonder if I didn't introduce it myself through seeding. Not sure if this is bermuda grass, centipede grass or creeping fescue. Photos would be helpful. And tips on how to get rid of whatever it is. Lots of interconnecting roots..... Thanks!!!