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Special inspection field report.pdf
FIELD REPORT NELSON Project: GEOTECffiv1CAL Client: ASSOCIATES, INC Location: 17311 135TH Ave. NE #A-500 Weather: Woodinville, WA 98072 Purpose of (425) 486-1669 FAX 481-2510 Visit: Stern Deck Addition Northlight Custom Homes 17019 — 73'd Place West Edmonds, Washington Showers; 57°F Construction Monitoring File No. 8800D18 Date: 11/01/2018 Report No: 01 Pagel of 2 By: CTC We visited the site today at the request of Tony Collins of Northlight Custom Homes on behalf of Darlene Stern to monitor the installation of pin piles beneath the proposed deck addition on the eastern side of the residence located at 17019 — 73'd Place West in Edmonds, Washington. Upon arrival we met with the contractors to discuss the tasks for the day. Robbins and Co. provided pile installation services. Erosion control had been installed previously, and shallow excavations were made for pipe and grade beam installation. We observed the contractor proceed to install all eight pin piles. The contractor used 2-inch diameter galvanized schedule 80 pipe connected with internal slip couplers. All of the pin piles were driven to a refusal criterion of less than one inch of movement during 60 seconds of continuous driving. Measurements were taken to the approximate cut-off height of 5-inches above grade, and locations are shown in the site plan. The recordings are as follows: Pin Pile ID Total Embedment (ft) 10.0 1 2 3 10.0 9.0 4 16.0 5 9.5 6 8 9.5 10.0 We found no signs of instability on site slopes at the time of our visit. Our findings and conclusions are basal on observations of construction activity while on -site. The pin piles observed installed today appear to have been suitably installed in accordance with the approved plans and our recommendations, and should sufficiently support the planned loads. Attachment: Site Plan Distribution: Signed: Carston T. Curd, GIT i ON"T1f mno 1 I 1 1 • Rua ��3 IWWIMWATOM"I" ATALLCCLUrAIMS NI M UARE SU sAm 1.OM - TIIC f.>1f71.6 XLLiDC I wT11E�� A • �OIEO.1[K a7wEill ^ !1 i blr FOUNDATION PLAN Sd 0 td rd© S-Mp.r4 DC-CK ADDirtoW No,o So& 0 moi Fol kwtop JfV