4415 RIVERFRONT BLVD 2018-02-21 - Laserfiche WebLink

qq fic 30� pt, 'M CST' • DESIGN? FIELD REPORT 1 of 3 Project Name: Everett River Front-Simpson Report: 024 GeoDesign#: j Polygon-127-03 Date: 01/27/2017 Reports with Unresolved Nonconformance Issues: Permit: PW 1505-005 Nick Abdelnour(Polygon) Randy Allen(City of Everett) Weather: Cloudy, 40's Ron Bowen(Polygon) Eddy Stevens(Polygon) Arrival/Departure: 1030/1100 Distribution: — - - --- — — -- -- Doug Ross(Polygon) Kirk Keck(City of Everett) 1630/1700 Paul McKee(City of Everett) Dave Foster(City of Everett) Prepared By: Ben Weinberg Attachments: m Site Plan(s) m Density Test Summary _ Signature: — r✓ ❑ Installation Records ❑ Other Reviewed By: PURPOSE of VISIT: GeoDesign representative, Ben Weinberg,was on-site part time at the request of John Feltner with Polygon to observe the foundation subgrade for Lots 134 and 141. SUMMARY of OBSERVATIONS: Lot 141: Previously for Lot 141, GeoDesign noted an area which could be probed 1 to 1.5 feet using a 1/2 inch diameter soil probe which we recommended be removed down to firm and unyielding soil,then lined with a non-woven geotextile material, and backfilled with 2 inch railroad ballast material compacted into a firm and unyielding mass. We also noted surficially loose and saturated material which we recommended be removed down to firm and unyielding ground. Today, GeoDesign observed the foundation excavation subcontractor remove surficially loose and saturated material and over-excavate the previously identified areas down to material which could be probed less than 1 inch. GeoDesign noted that the contractor lined the base of the over-excavated area with a non-woven geotextile material prior to backfilling with a 2-inch railroad ballast material. It is the opinion of GeoDesign that the foundation subgrade area is currently suitable for support of the intended load. GeoDesign recommends that any surficially loose and saturated material which may build up under the foundation subgrade area should be removed prior to the placement of concrete. Lot 134: Previously for Lot 134, GeoDesign noted an area which could be probed 1 to 1.5 feet using a 1/2 inch diameter soil probe which we recommended be removed down to firm and unyielding soil, then lined with a non-woven geotextile material, and backfilled with 2 inch railroad ballast material compacted into a firm and unyielding mass. We also noted surficially loose and saturated material which we recommended be removed down to firm and unyielding ground. Today, GeoDesign observed the foundation excavation subcontractor remove surficially loose and saturated material and over-excavate the previously identified areas down to material which could be probed less than 1 inch. GeoDesign noted that the contractor lined the base of the over-excavated area with a non-woven geotextile material prior to backfilling with a 2-inch railroad ballast material. It is the opinion of GeoDesign that the foundation subgrade area is currently suitable for support of the intended load. GeoDesign recommends that any surficially loose and saturated material which may build up under the foundation subgrade area should be removed prior to the placement of concrete. A summary of our observations can be found in the attached Figure 1 and Figure 2. John Feltner with Polygon was notified of our observations prior to our departure from the site. 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 oft he 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 1 Seattle,WA 98133 1 206.838.9900 2502 Jefferson Avenue I Tacoma,WA 98402 1 253.203.0095