4321 30TH DR SE 2017-09-11 - Laserfiche WebLink

DESIGNZu FIELD REPO ., 4;1 of Project Name: Everett River Front-Simpson Report: 022 GeoDesign #: j Polygon-127-03 Date: 01/10/2017 Reports with Unresolved Nonconformance Issues: Permit: PW 1505-005 Z© Nick Abdelnour(Polygon) Randy Allen(City of Everett) Weather: Cloudy, 30's Ron Bowen(Polygon) Eddy Stevens(Polygon) Arrival/Departure:1515/1630 Distribution: -- _ Doug Ross(Polygon) Kirk Keck(City of Everett) I Paul McKee(City of Everett) Dave Foster(City of Everett) I Prepared By: Ben Weinberg -m Site Plan(s) m Density Test Summary Signature: �. �1 Attachments: I ❑ 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 159, 161, and 169. SUMMARY of OBSERVATIONS: Lot 159: Previously, GeoDesign noted that the exposed foundation subgrade was covered in approximately 2 inches of surficially loose and saturated material. Today, GeoDesign noted that that the subgrade had generally been cleared. GeoDesign did note areas in the southwest and northeast corners which were covered in cleared of loose material with a concrete rake while on-site. GeoDesign also noted pooled water across the footing subgrade area which is at risk of freezing at low temperatures. It is the opinion of GeoDesign that the exposed footing subgrade is currently suitable for support of the intended structure. Lot 161: Upon arrival, GeoDesign noted that the foundation excavation subcontractor had completed excavation of the footing and crawl space area for Lot 161. GeoDesign noted that the exposed foundation subgrade generally consisted of a brown to dark brown silty SAND (f-m) with gravel (f-c) which could be probed generally less than 3 inches using a 1/2 inch diameter soil probe. Relative compaction of the exposed footing subgrade material was tested using a Troxler Moisture-Density gauge; in-place density tests indicated that the exposed footing subgrade had been compacted to greater than 95%of its maximum dry density as determined by a Modified Proctor analysis. It is the opinion of GeoDesign that the exposed footing subgrade is currently suitable for support of the intended structure. Lot 169: Previously, GeoDesign noted loose subgmerged material in the southeast corner of Lot 169 that we recommended removing prior to the placement of concrete. Today, GeoDesign observed the foundation excavation subcontractor use an excavator to remove ice, water, and loose soil from the southeast and northeast corners of Lot 169. GeoDesign also noted that a shovel and concrete rake was used to remove scattered loose and saturated material from footing subgrade areas. GeoDesign also noted pooled water across the footing subgrade area which is at risk of freezing at low temperatures. It is the opinion of GeoDesign that the exposed footing subgrade is currently suitable for support of the intended structure. For all of the lots, GeoDesign recommends that loose or saturated material that may build up under the footing area be removed prior to the placement of concrete. GeoDesign recommends that any water/ice be removed from the footing subgrade areas prior to the placement of concrete. A summary of our observations can be found in the attached Figure 1.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 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"sectlon. 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