11632 EVERGREEN WAY BASE FILE 2018-01-01 MF Import

Proposed Retail Devclopr.cnt J-1443 112�'Shect and Hwy. 49 Febmary 26,2004 � Lverett,Washington Page 5 \ Subsurface Walls • Depending on the floor elevation of the proposed buildirig and the deplh of bclo�v-gradc walls, it may bc possible that perchcd groundwater will be en�ountered. Below-grade wa:ls such as far an auto service pit should be appropriately moisturc�nd/or waterproofed. Pavement • Provided the upper 1 foot of subgrade soils are compacted to a minimum of 95 petcent of the mudified Proctor maximum dry density, we recommend the standazd asphalt pavement section consist of 3 inches of Class B asphelt over 4 inehes of crushed gravel base course over 5 inches of pit-run sand and grav^I subbase. Heavy-duty asphatt pavemcnt sections should consist of 4 inches of Class B asphalt over 4 inches of crushed gravel base course over 6 inches of pit-run sand and gravel subbase. If the minimum subgrade compaction level is reduced to 95 percent of the standazd Proctor, we recommend adding 6 inches of subbase to the pavement section. • • Provided the upper 1 fooi of subgrade soils are compacted to a minimum of 95 percent of the modified Proctor maximwn dry density, we recommend the standard concrele pavcment scction cansist of 5 inches of concrete (4,000 psi minimum) over 6 inches of crushed gravel base course. Heavy-duly pavement seclions should cunsist of 6 inches of concrete (4,000 psi minimum)over 6 inches of crushed gavel base course. Infiltration • Infiltralion tcsts were not completed as pari of our scope of�vork. in general,most of the soils encountcrcd are not considered suitable for surface water inliltration purposes. SCOPE OF SERVICES The authorized scope of servi:.es completed by ZZA for this project included a visual sit� rcconnaissance, subsurface exploration, field and laboratory testing, engineering analyses, and preparation of this report. This report was prepazed in general accordance �vith our Proposa!for Subsurface Exploration a�:d Geolechnical Engineering Services(P-1656) dated January 16, 2003. Written authorization to procced with our evaluation was provided by PacLand. SITE AND PROJECT DESCRIPTION The project site is located near the south�vest corner af 112`h Street East and Highway 99 in fivcrett,Washington. The subject property covers apprc�ximately 20.8 acres. A lazge portion of the site is currently deve]oped and includes the Pul1-A-Part v.�ecking yazd (fotmcrly identified as FerrilPs Auto Parls), the S/rady La�m Mabile Horne Park and Apartments, FiJJh Whee!Place RV ' and Trailer Sales, a construction equipment yard, an espresso stand and previously developed, vacant propertics. Vegetation on the site consists of scrub vegetation,blackberry vines,and alder, cottonwood,and evergreen trces. Swamp Creek ivns east to west along the north boundary of thc J-1443,022604 5 '