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1. INTRODUCTION 1.1 Project Location The proposed 2020 PMP roadway and utility improvements will be along Glenpaul Avenue from Cleveland Avenue N. to New Brighton Road, Edgewater Avenue from New Brighton Road west to its cul- de-sac, Jerrold Avenue from New Brighton Road west to its cul-de-sac and North Prior Avenue from Jerrold Avenue to West County Road D in Arden Hills, Minnesota. Borings were completed through the existing pavement sections. The approximate boring locations can be found on the Soil Boring Exhibit in Appendix A. 1.2 Project Description It is proposed to reconstruct the existing surface along these alignments and complete curb and gutter repairs/installation and place a new watermain. After backfilling the utilities, new roadways will be constructed. The new roadways will be two lane bituminous roads, reconstructed to about the same horizontal and vertical alignments as the existing ones. Underground utilities will consist of watermain. This utility is expected to be placed within 8 feet of final grades. WSB has developed recommendations for this project in consideration of the proposed layout, loadings, and configurations as understood at this time. WSB must be made aware of the revised or additional information in order to evaluate the recommendations for continued applicability. 1.3 Purpose and Project Scope of Services Sue Polka, previous Interim City Engineer with the City of Arden Hills authorized this work. In order to assist the design team in preparing plans and specifications, we have developed recommendations for pavement and utility subgrade preparation and pavement thicknesses. As such, we have completed a subsurface exploration program and prepared a geotechnical report for the referenced site. This stated purpose was a significant factor in determining the scope and level of service provided. Should the purpose of the report change the report immediately ceases to be valid and use of it without WSB's prior review and written authorization shall be at the user's sole risk. Our authorized scope of work has been limited to: 1. Mobilization /Demobilization of a Truck Mounted Drill Rig. 2. Clearing underground utilities utilizing the Gopher State One Call. 3. Drilling 13 standard penetration test borings to a depth of about 10 feet each. 4. Sealing the borings per Minnesota Department of Health procedures. 5. Perform soil classification and analysis. 6. Review of readily available project information and geologic data. 7. Providing this geotechnical report containing: a. Summary of our findings. b. Discussion of subsurface soil and groundwater conditions and how they may affect the proposed pavements and utilities. c. Estimated R-value of the soils. d. A discussion of soils for use as structural fill and site fill. Geotechnical Report 2020 PMP Street Improvements Arden Hills,Minnesota WSB Project No.014297-000 Page 1