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Sunwood Drive—Street Improvements <br /> Ramsey,Minnesota <br /> NTI Project No.16.61770.100 <br /> SUBSURFACE EXPLORATION SUMMARY <br /> NTI performed the subsurface exploration program on November 8, 2016 with a two-person crew using <br /> a truck-mounted CME-55 drill rig. Samples were generally collected in accordance with ASTM D 1586 <br /> "Standard Test Method for Standard Penetration Testing (SPT) and Split-Barrel Sampling of Soils." <br /> The boring locations and depths were determined by a representative with the City of Ramsey. The <br /> boring locations were staked in the field by NTI. The borings terminated at nominal depths 11.0 feet <br /> below the existing pavement surface. . <br /> Elevations were not provided to NTI,therefore, NTI has assumed a ground surface elevation of 100.0 <br /> feet for each of the boring locations. Please refer to the Boring Location Diagram,the Boring Logs in <br /> Appendix C, and the Pavement Core Photographs in Appendix D. <br /> Sunwood Drive- (Borings S-1 through S-11) <br /> Bituminous pavement thickness in this project area ranged from approximately 4.3 to 8.3 inches at the <br /> boring locations. Apparent aggregate base was not observed at the boring locations. Previously placed <br /> fill soils, generally consisting of poorly graded sand with silt (SP-SM), were encountered extending to <br /> depths ranging from approximately 2.0 to 7.0 feet below the top of pavement. <br /> Native alluvial soils consisting of poorly graded sand (SP), silty sand (SM), and poorly graded sand with <br /> silt(SP-SM)were generally observed extending to the boring termination depths. Varying amounts of <br /> gravel were encountered throughout the boring locations. <br /> Groundwater was observed in the boreholes at depths ranging from approximately 7.0 to 9.5 feet below <br /> the top of pavement at the time of drilling. Table 1 summarizes the encountered subsurface conditions <br /> for these project areas. <br /> Page 2 of 7 <br />