4410 RIVERFRONT BLVD 2018-02-21 - Laserfiche WebLink

Lo� X20 DESIGNuz FIELD REPORT 1 of 4 Project Name: Everett River Front- Simpson Report: 125 GeoDesign#: Polygon-127-01 _ _ Date: 10/11/2016 Reports with Unresolved Nonconformance Issues: Permit: PW 1505-005 C),l- (3 Nick Abdelnour(Polygon) J Randy Allen(City of Everett) Weather: Clear, 50's Ron Bowen(Polygon) Eddy Stevens(Polygon) Arrival/Departure: 1545/1630 Distribution: -- --- Doug Ross(Polygon) l Kirk Keck(City of Everett) Paul McKee(City of Everett) ( Dave Foster(City of Everett) I Prepared By: Ben Weinberg, E.I.T. m Attachments: -0-In Site Plan(s) [� Density Test Summary Signature: � -- -_ - _ ❑ Installation Records ❑ Other Reviewed By: lez 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 from Lots 164 and 120. Upon arrival, GeoDesign met with John Feltner. SUMMARY of OBSERVATIONS: Lot 164: Previously, GeoDesign had identified an area in the north corner of the footing and crawl space excavation which consisted of a dark brown silty SAND with gravel and trace to minor organics which could be probed 1 to 1.5 feet using a 1/2 inch diameter soil probe. Today, GeoDesign noted that the foundation excavation subcontractor had over-excavated the area approximately 2 feet and lined the base of the excavation with a geotextile material; the material exposed at the base of the area consisted of a brown silty SAND with gravel which could be probed approximately 8 inches. The contractor intends on backfilling the over-excavated area with permeable ballast material compacted into a firm and unyielding mass. Once the excavation has been backfilled and compacted, it is the opinion of GeoDesign that the footing subgrade area for Lot 164 will be suitable for support of the intended structure. GeoDesign recommends removing any surficially loose and saturated material from the base of the footing areas prior to the placement of concrete. Lot 120: Upon arrival, GeoDesign noted that the foundation excavation subcontractor had completed excavation of the footing and crawl space area for Lot 120. GeoDesign noted that the exposed footing subgrade material for Lot 120 consisted of a gray silty SAND (f-m)with gravel (f-c)which could generally be probed less than 2 inches. In-place density tests taken on the exposed footing subgrade materials indicated that the materials had been compacted to greater than 95%of its maximum dry density as determined by a Modified Proctor analysis. It is GeoDesign's opinion that the exposed footing subgrade observed today is currently suitable for support of the intended structure. GeoDesign recommends that any loose and saturated material be removed from the base of the footing areas prior to the placement of concrete. A summary of our observations and density tests taken today can be found in the attached Figure 1, Figure 2, and Nuclear Density Gauge Data. The client and concrete subcontractor was notified of our observations prior to our departure from the site today. This report presents opinions formed as a result of our observatlon 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. Ourwork does not include supervision or direction of the contractor,the contractor's employees or agents. Our firm is not responsible for site safely.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 Tacorna,.WA X8402 1 253.203.0095 l4