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<br /> <br /> <br />Geotechnical Report <br />Arden Oaks Street Improvements <br />Arden Hills, Minnesota <br />WSB Project No. 014297-000 Page 1 <br />1. INTRODUCTION <br /> <br /> Project Location <br />The proposed roadway improvements will be in the Arden Oaks Neighborhood in Arden Hills, Minnesota. <br />Specific roadway areas include Arden Oaks Drive, Arden Oaks Court and Arden Oaks Drive. <br /> <br />Borings were completed through the existing pavement sections. The approximate boring locations can <br />be found on the Soil Boring Exhibit in Appendix A. <br /> <br /> Project Description <br />It is proposed to reconstruct the existing surface along these alignments and complete curb and gutter <br />repairs/installation and place a new watermain. After backfilling the utilities, new roadways will be <br />constructed. The new roadways will be two lane bituminous roads, reconstructed to about the same <br />horizontal and vertical alignments as the existing ones. <br /> <br />Underground utilities will consist of watermain. This utility is expected to be placed within 8 feet of final <br />grades. <br /> <br />WSB has developed recommendations for this project in consideration of the proposed layout, loadings, <br />and configurations as understood at this time. WSB must be made aware of the revised or additional <br />information in order to evaluate the recommendations for continued applicability. <br /> <br /> Purpose and Project Scope of Services <br />Our proposal was authorized by Sue Polka, Interim City Engineer with the City of Arden Hills. In order to <br />assist the design team in preparing plans and specifications, we have developed recommendations for <br />pavement and utility subgrade preparation and pavement thicknesses. As such, we have completed a <br />subsurface exploration program and prepared a geotechnical report for the referenced site. This stated <br />purpose was a significant factor in determining the scope and level of service provided. Should the <br />purpose of the report change the report immediately ceases to be valid and use of it without WSB’s prior <br />review and written authorization shall be at the user’s sole risk. <br /> <br />Our authorized scope of work has been limited to: <br />1. Mobilization / Demobilization of a Truck Mounted Drill Rig. <br />2. Clearing underground utilities utilizing the Gopher State One Call. <br />3. Drilling 8 standard penetration test borings to a depth of about 10 feet each. <br />4. Sealing the borings per Minnesota Department of Health procedures. <br />5. Perform soil classification and analysis. <br />6. Review of readily available project information and geologic data. <br />7. Providing this geotechnical report containing: <br />a. Summary of our findings. <br />b. Discussion of subsurface soil and groundwater conditions and how they may affect the <br />proposed pavements and utilities. <br />c. Estimated R-value of the soils. <br />d. A discussion of soils for use as structural fill and site fill. <br /> <br />DRAFT REPORT <br />7-8-2021