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June 19, 2014 <br />City of Ramsey <br />Attention: Mike McDowall <br />7550 Sunwood Drive <br />Ramsey, MN 55303 <br />NORTHERN TECHNOLOGIES, INC. <br />Subject: Garnet Street & 168th Avenue Reconstruction Project <br />Geotechnical Exploration and Engineering Review <br />NTI Project No. 14.60582.100 <br />Northern Technologies, Inc. (NTI) has completed 4 soil borings for the proposed Garnet Street <br />and 168th Avenue Reconstruction project in the City of Ramsey, Minnesota. <br />The scope of services included determining existing bituminous and aggregate base thicknesses, <br />subsurface conditions, and providing recommendations for excavations, site preparation, <br />engineered fill and compaction, depths of unsuitable soils to be removed, ground water <br />management, potential difficulties anticipated during construction, and pavement design <br />parameters associated with the proposed street reconstruction project. <br />Our services were performed in accordance with our proposal dated May 2, 2014. <br />Project and Site Description <br />We understand the proposed project will consist of replacing underground utilities and street <br />improvements for Garnet Street Northwest and 168th Avenue Northwest located between 167th <br />Avenue Northwest and 169th Lane Northwest in Ramsey, Minnesota. The existing low-volume, <br />rural residential streets are bituminous paved. Invert elevations or other design details of the <br />proposed utilities were not provided at the time this report was prepared. <br />The proposed pavement section will be designed for a 20 -year design pavement life. Average <br />Daily Traffic (ADT) information was not provided to NTI. The assumed ADT for the project <br />streets are summarized in Table 1. <br />Table 1: Assumed ADT Information for Garnet Street & 168th Avenue <br />Project <br />Area <br />Assumed <br />ADT <br />Garnet Street Northwest <br />500 <br />168th Avenue Northwest <br />500 <br />6588 141st Ave NW <br />Ramsey, MN 55303 <br />763.433.9175 <br />763.323.4739 fax <br />7403 19`h Street S. <br />St. Cloud, MN 53601 <br />320.654.9409 <br />763.323.4739 fax <br />1408 Northland Drive #107 <br />Mendota Heights, MN 55120 <br />651.389.4191 <br />651.389.4190 fax <br />3522 4`h Avenue S. <br />Fargo, ND 58103 <br />701.232.7288 <br />701.232.1864 fax <br />830 48`h Street <br />Grand Forks, ND 58201 <br />701.219.0920 <br />701.775.3774 fax <br />