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Project:
Commercial Underpin Bank Building
Flagstaff, AZ
Engineer:
Sheppard/Wesnitzer, Inc.
Rodger Hocking
Underpinning Contractor:
Arizona Helical-Piers, L.L.C.;
Gilbert, AZ
Job Description:
This 3-story building owned by Dr. Anthony Choi of Flagstaff exhibited signs of distress and settlement.
Repair:
A total of 6 Helical-Piers were installed to stabilize and lift the side of the structure back to level. Depths reached by the piers ranged from 39ft. to 68ft. before a proper torque was reached.
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Note: AHPC reached depths of over 60ft. at the first two pier sites. A switch to multiple helix leads was done for the purpose of reaching torque faster at shallower pier depths and to save steel cost. This reduced the depths needed to reach the proper torque to 40ft.
 
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