Helical Piles

CASE HISTORY #19981001-A
Sept 1, 2009
Project Del Webb Sun City Sun City West, AZ
Engineer Bingham Engineering, Inc Daniel Bingham, P.E.
Underpinning Contractor Westcoast Helical-Pile, Corp. Temecula, California

Job Description: The Del Webb Corporation called on to tieback (using the Helical-Pier) 333ft of reinforced block retaining wall.

Repair: A total of 36 helical piers were installed to stabilize and stop further movement. The heel side of the wall had to be hand dug, drain holes drilled and then backfilled with gravel for drainage

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Lot #50 Completed Project
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8in. X 8in. 3/8 steel plate used in this case as a retaining washer.
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Heel side of previously trenched (330ft. X 4ft. deep) wall