Did that get you about 2" of top soil as a base Think Green? Man, I am sorry about the urea mishap. Sounds like a difficult site long term.
Good pictures, Riggle. Scary how much things have shrunk up. I just took on a football field that is well over 50% weeds, is mowed way too short, and has not had any fertilizer, weed control, aeration, etc. for 7-8 years. It is a rich soil but compaction is surprisingly not a problem (not a big one anyway). Anyway, I pulled some plugs at the end of June for a soil test and cut some larger holes with a cup-setter to have a look under the hood. Rooting was fairly good then but has shrunk up considerably in the last 3 weeks.
Somewhere (Sports Filed Forum probably) I posted some root mass photos from seed trials I ran a couple years ago. It is apples to oranges as I was looking for which blend had the best roots and it was late September or October from a late August or early September planting.
You sure have gotten curious in retirement! Interesting stuff.