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City of Arden Hills <br />Project B2502087 <br />June 13, 2025 <br />Page 7 <br />Street <br />Boring/Core <br />Locations <br />Bituminous <br />Thickness <br />(in.) <br />Aggregate Base <br />Thickness <br />(in.) <br />Overall Pavement <br />Thickness <br />(in.) <br />Cummings Park <br />Drive <br />ST-17 5 1/4 13 18 1/4 <br />ST-18 4 1/4 11 15 1/4 <br />ST-19 4 1/4 8 12 1/4 <br />Karth Lake Trail* <br />T-1 1 3/4 2 3 3/4 <br />T-2 Not Encountered 2 2 <br />T-3 2 1/4 2 4 1/4 <br />T-4 1 1/4 2 3 1/4 <br />*Pavement cores performed in bituminous trail (Karth Lake Trail). <br />B.4. Boring Results <br />Table 3 provides a summary of the soil boring results, in the general order we encountered the strata. <br />Please refer to the Log of Boring sheets in the Appendix for additional details. The Descriptive Terminology <br />sheets in the Appendix include definitions of abbreviations used in Table 3. <br />Table 3. Subsurface Profile Summary <br />Strata <br />Soil Type - <br />ASTM <br />Classification Range of N-Values Commentary and Details <br />Pavement <br />section --- --- ▪Reference Table 2 above for pavement section <br />thicknesses. <br />Fill SP-SM, SM, SC, CL Weight of Hammer <br />(WOH) to 25 <br />▪Extended to depths of about 2 to 11 feet (boring <br />termination depth) below existing grade. <br />▪Highly variable, soils intermixed. <br />▪Slightly organic layers encountered within <br />Borings ST-1 and ST-14. <br />▪Moisture condition generally moist. <br />Glacial <br />deposits SM, SC, CL, ML 7 to 50 <br />▪Variable amounts of gravel; has the potential to <br />contain cobbles and boulders. <br />▪Generally consists of CL. <br />▪SC encountered below the fill within Boring ST-2. <br />▪ML encountered below the fill within Boring ST-6. <br />▪SM encountered below the fill within Boring ST-8. <br />▪Moisture condition generally moist. <br />For simplicity in this report, we define fill to mean existing, uncontrolled or undocumented.