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HomeMy WebLinkAbout7945.04 E 2023 0825Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 www.esnw.com FIELD REPORT Project No. 7945.04 Page 1 of 3 Report ID 7945.04 E 2023 0825 Date Fri 8/25/2023 Weather 70°F Clear Arrival/Departure Time(s) 10:30AM; 11AM Travel Time (hr) 0.75 Project Name Canopy Property Location 413 Lincoln Ave NE, Renton ESNW Rep. & Phone Willem Scherwin | 206 793 8569 Client Info/Contact Century Communities | Stacia Bloom General Contractor Info/Contact Contractor #2 Info/Contact Reviewed By LAC Initials/Date RAC Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep was onsite to observe the Redi Rock wall keyway and drainage, as well as vault backfill Redi Rock Wall Observations ESNW rep was onsite to observe wall keyway. ESNW rep observed the contractor had excavated a keyway approximately 5 feet in width into native grey silt with gravel. ESNW rep used a ½” steel T-probe to probe the keyway and observed it to be very dense, firm, unyielding, and suitable for proposed Redi Rock wall. ESNW rep also observed drainpipe along the back of the wall along the base. An 18” column of drain rock was placed directly behind the wall blocks to the top of wall. Vault Backfill ESNW rep was onsite to observe and test the backfill of the stormwater vault onsite. ESNW rep observed the contractor spreading the soil out on and around the vault using a dozer. The native soil was then compacted with good effort using a medium sized hoe pack. ESNW rep took compaction tests and observed adequate compaction of at least 95% of the modified proctor at the tested locations. Please see map and table below. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 181 Vault Backfill -4 9 128.5 12.8 123.1 96 182 Vault Backfill -2 9 128.5 13.0 122.5 95 183 Vault Backfill SG 9 128.5 13.1 122.5 95 Report ID 7945.04 E 2023 0825 Page 2 of 3 Earth Solutions NW, LLC Report ID 7945.04 E 2023 0825 Page 3 of 3 Earth Solutions NW, LLC 181 182 183