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HomeMy WebLinkAbout0895.06 E 04212022.pdfEarth 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. 0895.06 Page 1 of 3 Report ID 0895.06 E 04212022 Date Thu 4/21/2022 Weather 40F Cloudy Arrival/Departure Time(s) 10:30 AM/ 11:00 AM 3:45 PM/ 4:00 PM Travel Time (hr) 1.25 Project Name Weatherly Inn Location 4500 Talbot Road S., Renton ESNW Rep. & Phone Jackson Lundgren 206-468-0991 Client Info/Contact RJ Development | Duane Meyer General Contractor Info/Contact Johannsen | Brad Permit No(s). Reviewed By LAC Initials/Date SSR 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. As requested by the client, ESNW rep was onsite at the Weatherly Inn development to observe and test backfill along wall excavation. While onsite the following was observed: Wall Excavation Backfill: ESNW rep observed contractor backfilling the eastern half of the wall with 12-inch loose lifts of 1 ¼-inch minus crushed recycled concrete. ESNW rep observed contractor had achieved minimum compaction standards of 95% of the modified proctor value in tested locations. ESNW rep observed the 6-block high eco block wall within the excavation remained stable, and native soil conditions were suitable for temporary vertical cut slope. The slopes of the excavation were observed to be stable and unchanging in their current temporary over steepened condition, however it is the responsibility of the contractor to perform all necessary safety measures in accordance with state and federal regulations. Contractor should contact ESNW for further observations if any changes in slope condition occur. ESNW rep will return as requested by client for further observations. Report ID 0895.06 E 04212022 Page 2 of 3 Earth Solutions NW, LLC Fig. 1: Crushed recycled concrete backfill Fig. 2: Crushed recycled concrete backfill Report ID 0895.06 E 04212022 Page 3 of 3 Earth Solutions NW, LLC Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 8 Wall Backfill -8’ SG 12 127.0 10.9 122.8 96 9 Wall Backfill -6’ SG 12 127.0 9.7 123.7 97 10 Wall Backfill -4’SG 12 127.0 11.1 124.0 97 11 Wall Backfill -2’ SG 12 127.0 9.9 123.7 97 12 Wall Backfill SG 12 127.0 10.5 122.9 96 Fig. 3: Approximate location of tests 8-12 on wall backfill Excavation 12 8-11