Laserfiche WebLink
0 <br />is <br />EOTECH <br />CONSULTANTS, INC. <br />Compass Health <br />P.O. Box 3810 <br />Everett, Washington 98213 <br />Attention: Tom Sebastian <br />via email.. sebastian @compassh. orq <br />Subject: Excavation Considerations <br />Proposed Multi -Story Building <br />3301 Lombard Avenue <br />Everett, Washington <br />Dear Mr. Sebastian: <br />2401 10th Ave E <br />Seattle, Washington 98102 <br />(425) 747-5618 <br />J N 17399 <br />July 25, 2019 <br />gal <br />t <br />_ <br />VERE T <br />We prepared a geotechnical engineering study for this project. As noted in the study, dense glacial <br />till was revealed on the site at depths ranging from approximately 4 to 5 feet below the ground <br />surface, and a relatively loose soil was revealed above it. We provided generalized temporary <br />excavation recommendations in our study for the different soils on site (one soil being loose upper <br />soil, the second being the glacial till). However, a more complete excavation plan has been <br />prepared for the project. As such, we can make more specific temporary excavation requirement. <br />Based on a significant number of projects we have been involved with in Everett and Puget Sound <br />area where glacial till has been encountered, it is our professional opinion that, a temporary <br />excavation with two separate inclinations; a vertical inclination can be made at the excavation base <br />within the glacial till soil, while a typical 1:1 (H.V) inclination can be made near the ground surface <br />above the vertical portion where the loose upper soil is encountered. The maximum vertical bottom <br />portion should be limited to 5 feet. We have observed several similar and successful open - <br />excavation situations in these types of soil in the area. <br />We trust that this report meets your immediate needs for the proposed developmerA Please contact <br />us if we can be of further service. <br />Respectfully submitted, <br />GEOTECH CONSULTANTS, INC. <br />D. Robert Ward, P.E. �joN�►L <br />Principal <br />07/25/19 <br />cc: Lotus Development Partners LLC — Michelle Morlan <br />via email. • michelle@lotusdevpartners.com <br />Environmental Works — Bill Singer <br />via email: 13Singer@eworks.org <br />DRW:kg r z <br />�� J <br />