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HomeMy WebLinkAbout20180398E003 Renton ES 16 2022-06-16 FR 023 Kirkland | Tacoma | Mount Vernon 425-827-7701| www.aesgeo.com Date Mailed: Principal / PM: Bruce Guenzler, L.G., L.E.G. This document is considered a DRAFT until signed or initialed by an AESI Principal or Project Manager Page 1 of 3 v.7.20 FIELD REPORT Date Project Name Project No. Report No. 06/16/2022 Renton Elementary School 16 20180398E003 023 Location Municipality AESI Project Manager AESI Field Rep 1075 Duvall Ave NE Renton Bruce Guenzler, L.E.G. Scott R. Hannah, L.G. Permit No. Client/Owner Attn Requested By B21004604 Renton School District No. 403 Ed Thomson Client Engineer/Architect General Contractor Grading Contractor Weather CPL / Hutteball + Oremus Cornerstone Continental Dirt Contractors/ Jerry Jr. Sunny, 60’s THE FOLLOWING WAS NOTED: Foundation Subgrade Observations- Building Area C Gridline A23/AM-AQ: Associated Earth Sciences Inc. (AESI) was on site late this afternoon and met with representatives from Cornerstone and Continental Dirt Contractors (CDC). While on-site, we observed the A23/AM-AQ spread footing excavations, highlighted on the foundation plan on page 2 and in the image below. Part of the footing forms had been installed. The foundation subgrade was covered with a few inches of the imported, compacted 2-1/2 inch minus, crushed rock. We observed soil conditions below the rock at random locations and around the outside of the footing forms where the native soil could be observed. Based on visual observations and with a ½ inch diameter, steel soil probe the native soil underlying the crushed rock or at the southern end where crushed rock was absent consisted of medium dense to dense, lodgement till suitable for foundation soil bearing of 3,500 psf, per plan, in our opinion. We informed CDC and Cornerstone of the results. A23/AM-AQ footing looking south 6 Date Project Name Project No. Report No. 06/16/2022 Renton ES 16 20180398E003 022 Page 2 of 3 FIELD REPORT A23/AM-AQ footing in yellow 6 Date Project Name Project No. Report No. 06/16/2022 Renton ES 16 20180398E003 022 Page 3 of 3 FIELD REPORT Plumbing Trenches In D- Building: Prior to our arrival today, a series of plumbing trenches and some conduits were backfilled in the central part of the D Building near gridlines D11-D12 from DB – DL. The trenches appeared to have been backfilled with the native soil and compacted to a firm and unyielding condition. AESI will test the surface of the trench backfill at random locations later. The plumbing and electrical contractors were not onsite. Grading in Shop/Mechanical yard enclosure area: While onsite today, we observed that the previously yielding soil had been removed and replaced with crushed rock. No traffic was seen to drive over the material to see if it yielded but, it was not yielding underfoot. Compacted plumbing trenches looking east in D Building