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HomeMy WebLinkAbout0895.06 DFR 240.pdfEarth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 www.esnw.com DAILY FIELD REPORT ESNW Rep. Project No. Page Report No. JTL 0895.06 240 Time On Site Time Off Site Date Day of Week 1:00 PM 2:00 PM 10/5/20 Monday Travel Time Weather 1.00Hr. RT 70s, Sun Project Name Job Location Client/Owner Weatherly Inn 4500 Talbot Rd. S., Renton, WA RJ Development, LLC Contractor #1 Contact Field Supervisor Reviewed Rino Construction Mike LAC Contractor #2 Contact Project Manager Reviewed SSR Are approved plans/permits on site?Project No.Permit No. Supplementary Report: At the client’s request, ESNW rep was onsite to observe water main trench excavation, roof drain backfill and slope stability. Roof Drain Trench: ESNW rep observed contractor using a medium sized excavator to excavate a 150’ long 3’ deep trench for a roof drain with 8’’ pipe along the west margin of the main building. Rep used a ½” steel t-probe and observed the subgrade to be very dense, firm, unyielding, and suitable for support of the proposed roof drain. Rep observed contractor backfill with 18’’ of pea gravel and then 1’ lifts of native material compacted with a jumping jack to grade. Moisture levels (approx. 20-28%) were too high above the optimum moisture for adequate compaction to be attained. ESNW rep. communicated this with the foreman and recommends leaving the material undisturbed and re-evaluating at a later date Water Main Trench: ESNW rep observed contractor using a medium sized excavator to excavate a 30’ long 7’ deep trench for a 12’’ ductile steel water main connecting to manhole 21 North margin of the stormwater vault. Rep used a ½” steel t- probe and observed the subgrade to be very dense, firm, unyielding, and suitable for support of the proposed water main outlet. Rep observed contractor backfill with 18’’ of pea gravel and then 3 1’ lifts of native material compacted with a jumping jack to grade. Moisture levels (approx. 20-28%) were too high above the optimum moisture for adequate compaction to be attained. ESNW rep. communicated this with the foreman and recommends leaving the material undisturbed and re-evaluating at a later date Cut Slopes While onsite, rep observed slopes of the cut slopes to be near vertical. Rep observed that the north slopes of the excavation were near a 0.75:1 (H:V) slope. Although over-steepened, slopes are stable in current configuration and stable to work within. The contractor is responsible for providing all safety measures in accordance with state and federal regulation ESNW rep will return to observe earthwork activities when requested by client Fig 1. Trench for stormwater vault outlet pipe. Jackson Lundgren Field Technician 206-468-0991 1/1