4414 RIVERFRONT BLVD 2018-03-13 - Laserfiche WebLink

GEODESIGNz FIELD REPORT . Project Name: Everett River Front-Simpson Report: 007 GeoDesign#^ Polygon-127-03 Date: 11/17/2016 Reports with Unresolved Nonconformance Issues: Permit: PW1505-005 Q U ....... R.11 .:..x'W.. .N:...::. .•'::;(1 Vei,A�,.. .saw ,�mk.; .e.l.. ,.. k....eu ,. «•Tfn °`'y r'.re ..5.,, .... :..� Nick Abdelnour(Polygon) Randy Allen(City of Everett) , Weather Cloudy,40's Ron Bowen(Polygon) • Eddy Stevens(Polygon) Arrival/Departure: 0830/0930 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. 0 Site Plan(s) 0 Density Test Summary Signature: Attachments: ,... — i uInstallation Records ❑Other Reviewed By: R PURPOSE of VISIT:GeoDesign representative,Benjamin Weinberg,was on-site part time at the request of John Feltner with Polygon to observe the foundation subgrade for Lots 121 and 122. SUMMARY of OBSERVATIONS: Lot 121: Upon arrival,GeoDesign noted that the exposed foundation subgrade was submerged. GeoDesign probed the submerged foundation subgrade material to identify areas which may require over-excavation using a 1/2 inch diameter soil probe; GeoDesign noted that penetration depths were generally limited to less than 2 inches. GeoDesign noted the presence of surficiai pockets of loose and saturated material across the foundation subgrade area and recommended that the foundation excavation be dewatered and surficially loose and saturated material be removed. GeoDesign noted the foundation excavation subcontractor began dewatering the excavation prior to our departure from the site. Today,GeoDesign observed the exposed foundation subgrade for Lot 122. GeoDesign noted that the foundation and crawl space excavation had been completed prior to our arrival on-site. The exposed foundation subgrade material generally consisted of a gray silty SAND(f-m)with gravel. For the eastern portion of the foundation area,penetration depths using a 1/2 inch diameter soil probe were less than 2 inches. For the western portion of the foundation area, penetration depths using the soil probe were approximately 1 foot. GeoDesign delineated the western area with foundation subgrade soils not currently suitable for support of the intended structure using orange spray paint. GeoDesign recommends that the identified soils be over-excavated down to firm and unyielding material,a non-woven geotextile placed, and backfilled with 2-inch clean crushed permeable ballast material compacted into a firm and unyielding mass. A summary of our observations can be found in the attached Figure 1. The client and and foundation excavation subcontractor were notified of our observations 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 contractor's 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"Reviewesdffr section. 10700 Meridian Avenue North,Suite 402 i Seattle,WA 98133 I 206.838.9900 2502 Jefferson Avenue I Tacoma,WA 98402 1253.203.0095 —310