4507 RIVERFRONT BLVD 2018-12-26 - Laserfiche WebLink

GE I DESIGN 451)-i R a " 1u FIELD RE 1 of t Project Name: Everett River Front-Simpson Report: 083 GeoDesign#: Polygon-127-03 Date: 11/13/2017 Reports with Unresolved Nonconformance Issues: Permit: PW1505-005 `z:a_-_-'.'og:•.- A:t 6 -€ gt*,,,. 4; 4#: Nwat: a1# 00 Nick Abdelnour(Polygon) Randy Allen(City of Everett) Weather: Cloudy, 50's Ron Bowen(Polygon) Eddy Stevens(Polygon) Arrival/Departure: 1415/1430 Distribution: Doug Ross(Polygon) Kirk Keck(City of Everett) Paul McKee(City of Everett) Dave Foster(City of Everett) Prepared By: Ben Weinberg, EIT Attachments: IDSite Plan(s) 0 Density Test Summary Signature: ❑ Installation Records 0 Other Reviewed By: % PURPOSE of VISIT: GeoDesign representative, Ben Weinberg, was on-site part time at the request of Craig with DDS to observe foundation subgrade for Lot 229. SUMMARY OF OBSERVATIONS: Now that we have entered the wet season, it is more likely that surficially loose and saturated soil (i.e. mud and muck)will develop in areas where exposed soil gets wet.We recommend that excavations be graded to drain water away from the foundation and crawl space areas.We also recommend that excavation of the foundation areas be sequenced to minimize exposure to wet weather and disturbance from construction activities. If this sequencing is not feasible,then a thin layer of clean crushed rock can be placed over the exposed soil to protect the exposed soil during wet weather construction activities. Foundation subgrade evaluations should be scheduled just prior to construction of concrete forms to avoid the deterioration of the foundation subgrade after our evaluation. Before footings are poured,we recommend that any mud that has developed in footing areas be scraped off and removed. We recommend that we be contacted to re-evaluate footing subgrade if significant deterioration has occurred since our previous visit. LOT 229: Previously, GeoDesign noted that DDS had over-excavated footing areas on the east 1/3 of Lot 229 1 to 3 feet down to firm and unyielding soil which could be probed less than 1 inch using a 1/2 inch diameter soil probe. Today, GeoDesign noted that DDS had backfilled the over-excavated areas with a 2-inch clean crushed railroad ballast material that had been tamped into a firm and unyielding mass. The west 2/3rd's of the footing and crawl space area was still covered with approximately 1-2 inches of surficially loose and saturated material which should be removed prior to placement of concrete. It is the opinion of GeoDesign that the soil beneath the footing areas for Lot 229 is suitable for support of the intended structure with the exception of the previously mentioned surficially loose and saturated material. GeoDesign recommends that any loose and saturated soil that is present beneath footing areas be removed prior to the placement of concrete. The client and contractor were notified of our observations prior to our departure from the site.A summary of our observations can be found in the attached Figure 1. 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"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