4510 31ST AVE SE 2018-12-27 - Laserfiche WebLink

NIMIDESIGN ! 4 5) D l , ) FIELD RE R- 1 of 2 Project Name: Everett River Front-Simpson Report: 086 GeoDesign#: Polygon-127-03 Date: 1/3/2018 Reports with Unresolved Nonconformance Issues: Permit: PW1505-005 Nick Abdelnour(Polygon) Randy Allen(City of Everett) _ Weather: Cloudy,40's Ron Bowen(Polygon) Eddy Stevens(Polygon) Arrival/Departure: 0945/1000 Distribution: Doug Ross(Polygon) Kirk Keck(City of Everett) 1715/1730 Paul McKee(City of Everett) Dave Foster(City of Everett) Prepared By: Ben Weinberg, EIT Attachments: ❑ Site Plan(s) ❑✓ Density Test Summary Signature: 07:, ❑ Installation Records ❑ Other Reviewed By:- ailegiay, 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 249 &278. SU 'Y OF OBSERVATIONS: LOT 249 • - •sly, GeoDesign noted approximately 2-3 feet of loose and saturated gray-brown silty SAND with gravel along the south perimeter of the footing area which we recommended be removed down to firm and unyielding soil and replaced with structural fill. During our morning visit, GeoDesign noted that the foundation excavation subcontractor over-excavated the south edge of the building area down 2-3 feet to a gray-brown silty SAND with gravel which could be probed less than 1 inch using a 1/2 inch diameter soil probe; the excavation extended approximately 4-5 feet from the outside edge of proposed footing. GeoDesign notified the client and contractor that the over-excavated was suitable for placement of backfill material prior to leaving the site. During our evening visit, GeoDesign noted that the foundation excavation subcontractor had backfilled the over-excavated area with a clean 2-inch crushed rock material compacted into a firm and unyielding mass. It is the opinion of GeoDesign that the footing areas observed today for Lot 249 are currently suitable for support of the intended structure. We recommend that any surficially loose and saturated soil that may build up beneath footing areas be removed prior to the placement of concrete. Lot 278: Previously, GeoDesign noted approximately 6 inches of loose and saturated gray silty SAND with gravel along the south perimeter of the footing area (-15 feet long section)which we recommended be removed down to firm and unyielding soil and replaced with structural fill. During our morning visit, GeoDesign noted that the foundation excavation subcontractor over-excavated the area identified down to a gray silty SAND with gravel which could be probed less than 1 inch using a 1/2 inch diameter soil probe. GeoDesign notified the client and contractor that the over-excavated was suitable for placement of backfill material prior to leaving the site. During our evening visit, GeoDesign noted that the foundation excavation subcontractor had backfilled the over-excavated area with a clean 2-inch crushed rock material compacted into a firm and unyielding mass. It is the opinion of GeoDesign that the footing areas observed today for Lot 278 are currently suitable for support of the intended structure. We recommend that any surficially loose and saturated soil that may build up beneath footing areas be removed prior to the placement of concrete. 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