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Mock Residence Foundation Stabilization Structural Observation Report #3 08.12.19 (1)C � ENGINEERING civil & structural engineering & planning STRUCTURAL OBSERVATION REPORT Project: Mock Residence Slope Stabilization Purpose: Structural Evaluation Location: 21100 88th PI West Date: August 12, 2019 CG Project: 18295.10 Report: 3 Client: Darrin Mock General Contractor: Unknown Field Rep: Morgan Kruse, PE PURPOSE AND SCOPE A field representative of CG Engineering was on site on August 5, 2019 to observe the structural slab dowel bar installation to the existing foundation. Prior to our site visit, approximately 75'-0" total length of concrete grade beam had been poured and completed, along with the block retaining wall below the structural slab. EXISTING BUILDING The existing building is a single family residential structure that had experienced settlement to the downhill side. The existing rockery wall at the edge of the rear patio was removed and will be replaced with an allan block and geogrid wall system supported by a concrete grade beam. The concrete patio slab will then be replaced with a new structural slab. At the time of our site visit, the entire length of grade beam was completed and the block wall was installed. To the best of our knowledge, the construction that we observed was in accordance with the approved structural drawings with the exception of the items listed below: OBSERVATIONS & RECOMMENDATIONS 1. Structural Slab Reinforcing — Prior to our arrival on site, the holes for the dowel bars were drilled into the existing footing and cleaned as required for the epoxy installation. During our site visit, the epoxy was inserted into the drilled holes, and the dowel bars were inserted. The epoxy used was USP CIA -GEL 7000-C and Sika Pro Select. The slab dowel bars and epoxy appeared to conform to the construction documents and no issues were noted. rGUrl WAZ C4�n, ag � OVAL / DISCLAIMER This observation is the professional opinion of CG Engineering PLLC based on the information available during this assessment or evaluation. This report does not warrant or guarantee that all conditions were discovered at the time of the observation. This report was prepared subject to the standard of care applicable to professional services at the time the services were provided. 250 4th Avenue South, Suite 200 Edmonds, WA 98020 ph.425.778.8500 1 f.425.778.5536 www.cgengineering.com Mock Residence Foundation Stabilization CG Project No. 18295.10 August 12, 2019 Page 2 of 4 C 4M ENGINEERING �- CUSP CIA -GEC 760 voxv rF SiAIC1AAAl CUNCiunu xlee or eo��IrrN I, jffNgYfD f0jl C/AC9Eft Aft I#CJTwCan Apa1Cl"ONS r.� • � ... PER/CC-ESAe30B nveonnoovanIES Aavu 9H Erns CON GRIETAS Y 4 • . Ok • ,�. ,,.� 1� - r -,ZZ1eclars.c0111 �,y� r�•''t ai Itp-77s.5931 �certn.u[�.�i' 1I f!t . .p- Ir 61 �a � iIUP IOC 19 .. '1'� ..i `' �. •�� ~' �((('� ,� rr�t�, Photo 1— Epoxy used for installation Photo 2 — Epoxy used for installation 250 4th Avenue South, Suite 200 Edmonds, WA 98020 ph.425.778.8500 1 f.425.778.5536 www.cgengineering.com Mock Residence Foundation Stabilization CG Project No. 18295.10 August 12, 2019 Page 3 of 4 Photo 3 — Slab dowel bars Photo 4 — Slab dowel bars C � 250 4th Avenue South, Suite 200 Edmonds, WA 98020 ENGINEERING ph.425.778.8500 1 f.425.778.5536 www.cgengineering.com Mock Residence Foundation Stabilization CG Project No. 18295.10 August 12, 2019 Page 4 of 4 Photo —_Slab dowel bars J Photo 6 — Slab dowel bars 250 4th Avenue South, Suite 200 C Edmonds, WA 98020 ENGINEERING ph.425.778.8500 1 f.425.778.5536 www.cgengineering.com