3017 44TH ST SE 2019-04-30 - Laserfiche WebLink

3011 44-th S-1- L Cot G EO DESIGN FIELD REP• 1 of Project Name: Everett River Front-Simpson Report 119 GeoDesign 4t: Polygon-127-01 Date: 9/27/2016 Reports with Unresolved Nonconformance Issues: Permit: PW1505-005 tp0' Nick Abdelnour(Polygon) Randy Allen(City of Everett) Weather:Clear, 60's Ron Bowen(Polygon) Eddy Stevens(Polygon) Arrival/Departure: 1445/1630 Distribution: Doug Ross(Polygon) Kirk Keck(City of Everett) Paul McKee(City of Everett) Dave Foster(City of Everett) Prepared By: Ben Weinberg, E.I.T. Attachments: 0 Site Plan(s) 0 Density Test Summary Signature: ❑ Installation Records 0 Other Reviewed By: gx PURPOSE of VISIT: GeoDesign representative, Benjamin Weinberg, was on-site at the request of John Feltner with Polygon to observe foundation subgrade for Lots 162 and 163. SUMMARY of OBSERVATIONS: Lots 162 and 163: Upon arrival, GeoDesign noted that the exposed foundation subgrade for the east half of Lots 162 and 163 consisted of a dark brown sandy SILT with minor organics(roots)which could be probed 1 to 2 feet using a 1/2 inch diameter soil probe under the full weight of the user; an in-place density test taken on the above-mentioned material using a Troxler Moisture-Density gauge indicated that the exposed foundation subgrade hada dry density of 98.8 pcf at a moisture content of 23.4%. GeoDesign notified John Feltner with Polygon that the above-mentioned areas were unsuitable for support of the intended structure and recommended that the footings either be extended down to underlying firm and unyielding material or to remove the unsuitable material and replace with structural fill. GeoDesign clearly marked the areas that were unsuitable for support of the intended structure using orange spray paint. Polygon elected to remove the unsuitable material and replace with structural fill. Polygon requested that GeoDesign observe a stockpile of on-site material to assess its suitability for use as structural fill. GeoDesign noted that the two stockpiles of material along the south perimeter of Phase 1 generally consisted of a gray-brown silty SAND with gravel that appeared to be slightly above its optimum moisture content. In-place moisture readings taken on the stockpiled material using a Troxler Moisture Density gauge indicated that the material was at a moisture content ranging from 7.2%to 11.5%, with an average moisture content of approximately 10%. Based on our previous experience with on-site material, it is our opinion that the stockpiles were currently suitable for use as structural fill and should be able to achieve 95% relative compaction of its maximum dry density as determined by a Modified Proctor analysis. GeoDesign emphasizes that the material stockpiles should be protected from precipitation to avoid the material becoming unsuitable for use as structural fill. A summary of our observations from today's site visit can be found in the attached Figure 1 and Photo Log. • GeoDesign notified the client of these observations and recommendations prior to our departure from the site today. This report presents opinions formed as a result of our observation of activities relating to geotechnical engineering or environmental services,We rely on the contractor to comply with the plans and specifications throughout the duration of the project irrespective of the presence of our representative.Our work does not include supervision or direction of the contractor,the contractors employees or agents.Our firm is not responsible for site safety.This field report Is a DRAFT representation of our field observations,testing,and preliminary recommendations.The report can only be considered final upon review of the GeoDesign project manager,as indicated by Initials In the"Reviewed By"section. 10700 Meridian Avenue North,Suite 402 I Seattle,WA 98133 I 206.838.9900 2502 Jefferson Avenue I Tacoma,WA 98402 I 253.203.0095 •