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Geotech-Freeman Residence Final LetterAges Engineering A Geotechnical Engineering Services Company Ozzie Lucca 2410 Dexter Avenue North Seattle, WA 98109 Subject: Final Letter Freeman Residence 8602 Olympic View Drive Edmonds, Washington PN: 28071600102800 Dear Mr. Lucca, P.U. Box 935 Puyallup, WA.98371 Main (253) 845-7000 www.agesengincering.com September 30, 2024 Project No. A-1674 As requested, we visited are providing a summary of our construction observation for the recent development performed on the subject site. We were provided with a City of Edmonds Special Inspection and Testing Agreement (Permit Number BLD2024-0036) indicating Ages Engineering was to perform special inspections during development. The Special Inspection item listed on the agreement is described as "Soils as per Geotechnical Engineer Report". The conclusions and recommendations presented in this letter are based on our understanding of the above stated site and the planned project design features. If actual site conditions differ, the planned project design features are different than we expect, or if changes are made, we should review them in order to modify or supplement our conclusions and recommendations as necessary. SITE CONDITIONS The subject site is an irregular -shaped, 0.27-acre, residential parcel located in Edmonds, Washington. The site is currently occupied with a single-family residence located in the approximate center of the site. The site is bordered by residential parcels to the east, west and south, and Olympic View Drive to the north. Access to the site is provided by Olympic View Drive located along the north side of the site. The approximate location of the site is shown on the Site Vicinity Map provided in Figure 1. The walkway from the driveway parking area to the front door of the residence was recently remodeled. The previous configuration consisted of a concrete staircase and walkway with various rockeries along its side. Currently, the old concrete walkway and stairs have been removed. The concrete along the walking surface was replaced with pavers, and the rockeries along the sides of the walkway were replaced with segmental block walls. The walls have been founded on a layer of crushed rock Mr. Orzie Lucca September 30, 2024 overlying the native tan silty sand with gravel on the site. The front yard of the site is currently landscaped with a few scattered bushes, small trees and a grass lawn. DISCUSSION AND RECOMMENDATIONS Based on the results of our data review, site reconnaissance, and our site examination, it is our opinion the walls and walkway have been founded on subgrade soil consisting of native silty sand with gravel and sand with silt and gravel consistent with Advance Outwash. The new walkway and segmental block walls have been constructed in accordance with the project specifications and Ages Engineering recommendations. We trust this information is sufficient for your current needs. If you have any questions, or require additional information, please call. Respectfully Submitted, Ages Engineering _-� 5-0 38917 Bernard P. Knoll, Il, P.E. "/ONAl- Principal BPK/bpk Project No.: A-1674 ATTACHMENTS: Daily Field Report (1) 93v Zazy Page - 2 - P.O.Box 935 Ages Engineering Puyallup, WA. 98371 Main (253) 845- 5-7000 A Geotechnical Engineering Services Company www.agesenginceri".com DAILY FIELD MEMO Project Name: Freeman Residence 8602 Olympic View Drive, Edmonds, Location: WA -- Weather: Clear Reason for Visit: Wall SUbgrade Date: September 28, 2024 Project#: A-1674 Report #: 1 Page: 1 Of Field Representative: Bernie Knoll NOTES: An Ages Engineers representative visited the site to observe the subgrade soil for the new retaining walls and walkway on the site. At the time of our site visit, the work was complete. To examine the wall subgra a soils, we examined several photographs taken during construction and using - -- - d those photos chose areas to excavate_ shallow test holes to verify the soils observed in the photos is the same as the soils observed today during our examination. The photographs clearly showed the old concrete walkway, and rockeries were removed from the new alignment. The exposed subgrade soils were tan and looked like silty sand. Gravel constituents were also evident in the photos. The new alignment followed the previous alignment, so it was obvious that all of the old walkway was removed. We excavated several test holes along both side of the new walkway and segmental block_ retaining walls. We observed native silty sand with gravel__ and sand with silt and gravel consistent with Advance Outwash in all locations. The walls appeared straight and level, the embedment appeared sufficient. The walkway surfacepeared straight and level. We observed no areas of instability. The walkway and segmental block walls appear to have been constructed in accordance with the project plans and the recommendations_provided by Engineering during the Design Phase of the project development. _ Project Manager: Field Representative: