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HomeMy WebLinkAbout20180398E003_Renton_ES_16_2022-06-15_FR_022 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 4 v.7.20 FIELD REPORT Date Project Name Project No. Report No. 06/15/2022 Renton Elementary School 16 20180398E003 022 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 Areas B and C: Associated Earth Sciences Inc. (AESI) was on site part-time for geotechnical observations. Upon our arrival at 2:45pm, we met with representatives from Cornerstone and Continental Dirt Contractors (CDC). While on-site, we observed a series of completed spread footing excavations, as located on the foundation plan shown below and in the images on the following pages. Most of the footing forms had been installed. The foundation subgrades were blanketed with a few inches of the imported, compacted 2-1/2 inch minus, crushed rock to provide a stable, winter working surface. Shallower footing excavations were still located in the crushed rock building pad. The rock was observed to be in a firm and unyielding condition, based on visual observations and with a ½ inch diameter, steel soil probe. Dense, native soil consisting of lodgement till was observed along the margins of the deeper footing excavations. The compacted rock and native sediment will provide suitable foundation soil bearing of 3,500 psf, per plan, in our opinion. The contractor planned to excavate another footing on gridline A23/AM-AQ tomorrow. Building Area B and C footings looking west Date Project Name Project No. Report No. 06/15/2022 Renton ES 16 20180398E003 022 Page 2 of 4 FIELD REPORT Foundation areas observed today highlighted in yellow. Building Area C foundation plans Building Area B foundation plans Date Project Name Project No. Report No. 06/15/2022 Renton ES 16 20180398E003 022 Page 3 of 4 FIELD REPORT AL/A13 Footing looking east AL/A18 Footing looking east. Dense lodgement till in foreground Date Project Name Project No. Report No. 06/15/2022 Renton ES 16 20180398E003 022 Page 4 of 4 FIELD REPORT Grading in Shop/Mechanical yard enclosure area: While onsite today, Jerry with CDC showed us wet fill that had been spread out temporarily east-northeast of the building area. The fill was on the order of 1 to 2 feet thick and yielded easily under foot. Jerry informed us that it would be removed and replaced with suitable material (soil or rock). NE Bldg Corner