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HomeMy WebLinkAbout20160674E002 Bethany Corner 2021-05-06 FR 020.pdf Kirkland | Tacoma | Mount Vernon 425-827-7701| www.aesgeo.com Date Mailed: Principal / PM: Matthew A. Miller, P.E. This document is considered a DRAFT until signed or initialed by an AESI Principal or Project Manager Page 1 of 2 v.7.20 FIELD REPORT Date Project Name Project No. Report No. 2021-05-06 Bethany Corner 20160674E002 020 Location Municipality AESI Project Manager AESI Field Rep 16451 111th Ave SE Renton Matthew A. Miller, P.E. Alex Ybarra, Staff Geologist Permit No. Client/Owner Attn Requested By Mark Seek (Tiger Mountain Homes) Mark Seek Contractor Engineer/Architect General Contractor Grading Contractor Weather D.R. Strong Tiger Mountain Homes / Mark Fury Site Works/Dan Sunny, 50’s THE FOLLOWING WAS NOTED: Associated Earth Sciences, Inc. (AESI) arrived on site in the AM in order to observe proof roll for curb and roadway. Upon arrival we met with Tom with the City of Renton, Mike Day with Fury, and Mark Seek with Tiger Mountain Homes. Proof Roll: While we were on site we observed a proof roll for site curb and roadway (Fig 1). Proof roll was conducted utilizing a fully loaded dump truck. Subgrade consisted of approximately 6” of compacted 1 ¼” minus crushed rock. During proof roll three locations were observed to yield. These areas were painted. The rest of the area proof rolled was firm and unyielding. While we were on site we recommended repairs for yielding areas of subgrade. AESI recommended removing yielding material and replacing with structural fill. Fury completed the recommendation while onsite. Yielding area at the east side of the site was removed until firm, unyielding subgrade was encountered as assessed utilizing a ½” diameter steel soil probe, approximately 1’ deep. Removed material was replaced with imported 1 ¼” minus crushed rock which was compacted utilizing a vibratory roller. Crushed rock was compacted to a firm and unyielding condition while we were onsite. Approximate volume of over excavation was 5.6 yd3. While we were onsite we observed subgrade conditions for the two other yielding areas on the roadway observed during proof roll. Fury removed the overlaying crushed rock to expose soils underneath and excavated further in multiple locations up to 1’ deep. AESI observed and assessed the areas as well as the excavations with a ½” diameter steel soil probe and reached penetration depths of less than 1” deep. AESI recommended to Fury and Mark Seek to continue observations for these areas and to reassess prior to paving. AESI departed the site in the PM and will return upon request. Date Project Name Project No. Report No. 2021-05-06 Bethany Corner 20160674E002 020 Page 2 of 2 FIELD REPORT Figure 1: Red line and outlined area shows the approximate location of curb and roadway subgrade observed. Blue shaded area shows the approximate location of yielding subgrade repaired. Green shaded areas show the approximate location of yielding subgrade observed but continuation observation recommended.