4330 HOYT AVE 2022-03-01 - Laserfiche WebLink

rJUG Lai i r Jr kirk 1 NELSON Project: Staniford Residence File No.: 11485B20 Underpinning GEOTECHNICAL Owner: John Staniford Date: 8/6/2020 ASSOCIATES,INC Location: Everett,WA Report No: 4 17311 135TH Ave.NE#A-500 Weather: Raining, 70's Page 1 of 2 • Woodinville,WA 98072 Purpose of (425)486-1669 FAX 481-2510 Visit: Construction Monitoring By: KSB Wenatchee,WA 509 665-7696 . We visited the site today at the request of John Stanford to provide geotechnical consultation and construction monitoring services for the Staniford Residence Underpinning located at 4328 Hoyt Avenue in Everett,Washington. Upon arrival to the site we met with John Staniford and the pile contractors from Advanced Foundation Supports to discuss the days plans. We observed the installation of pin piles per the plans. Pile 7 was driven further in attempt to reach refusal. It was abandoned and it was confirmed that it will not be needed or used in the design. The piles to be driven consisted of 2-inch diameter, schedule 80, steel pipe, in 5'3" and 10'6" sections that were connected with internal slip couplers. The piles were driven to a refusal criteria of less than one inch of vertical movement in 60 seconds of continuous driving with a 140-pound Rhino Heavy Duty Post Driver. We monitored as each of the pin piles were driven to refusal. The depths of refusal and corresponding pile numbers are listed in the table below. The depths are measured from the existing ground surface. The locations of the pin piles can be found on the attached site plan. Pile Number Pile Embedment(feet) P10 13.8 P33 13 P34 11.9 P28 19.5 P9 13.7 P29 14.7 P30 19.7 PI 19.7 P2 21.7 P31 20.3 P32b 18.7 P39 19.3 P40 15.7 P7 45+(Not Used) P41 15.7 P42 13.9 Attachments:Site Plan Signed: Distribution: _._ Katelyn Brower,GIT