From the Y today

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Is this bracing across the entire width of a site a normal thing? Don't recall seeing it in other sites. Corner bracing for sure, but not full width. And how much further down is this dig supposed to go?
 
If there's a subway just east of your wall, you're not putting a row of tiebacks into the tunnel, so you use rakers to hold up the wall instead.

Wherever you're going to plunge tiebacks into the ground beyond your site, you need the permission of the landowner, so you pay them. That adds to the budget, but tiebacks are still preferred because they don't clutter up the pit with things you have to avoid hitting with your equipment. (See the last photo above where that shovel has got to keep its arm low, for example.

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