Structural soil. It's a mix of clay, gravel, some sort of high-tech hydrogel - basically, it's solid gold (and priced accordingly). It'll allow tree roots to grow and avoid being compacted under concrete. And it allows us to get a continuous tree trench and pervious pavers to catch water instead of individual tree grates that need irrigation.
[Also, don't be alarmed...the Catholic Charities building is still upright. I am just a little tired this morning.]
And speaking of solid gold, Hamline was paved last week in what I think constitutes record time. First concrete of the season for University Avenue.
I am hoping we see some curbs on the south side by the end of the week. Btw, March, this weather is quite helpful for building rail systems. Keep it up.
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Location:Hamline & University