Thank you all for your helpful insight-
PEInc- They may try soldier pile, will depend on river level, and their dewatering system.
Focht3- That was a thought of ours as well, but may be difficult to find that large of a diameter pipe in our area. When you talk about hydraulic excavation do...
I don't think that will work as last layer at 15.5' depth, and the edge of this hole is located within 5' of existing liftstation.
Only other thoughts have been to erect a caisson and dig from within to allow to drop with excavation, as it is not felt soldier pile walls could seal water well...
Hello all,
you guys do great work!
Contractor has lift station to place with in 60' of river. Water table at 4.9'. Very dense sand and gravel 50/4" at 5'and 15' remainder is 25-35 blow count sand/gravel with one clay layer at 20-23'.
Lift station 96" to be placed 19' deep.
any...
