Orange County NC Website
Browse       Search
DocuSign Envelope ID:OEA8910E-53C5-4456-B7C4-13B07A47BB46 <br /> USUMMIT 320 Executive Court, Hillsborough, NC 27278 <br /> DESIGN AND ENGINEERING SERVICES Phone // 919.732.3883 Web // www.summitde.net <br /> February 24, 2020 <br /> MEMORANDUM TO: Angel Barnes <br /> Capital Projects Manager <br /> Orange County—Asset Management Services <br /> FROM: Don Dewey, PE. <br /> Senior Geotechnical Engineer <br /> Summit Design and Engineering Services, PLLC <br /> SUBJECT: Orange County Motor Pool Facility—Gravel Parking Lot Evaluation <br /> As discussed during our meeting on February 10,h, Orange County is requesting an evaluation of <br /> the gravel parking lots and driveways at the Motor Pool located at 600 NC Highway 86 North. The <br /> goals of the evaluation are primarily to assess maintenance needs, including requirements for <br /> additional stone, as well as identification of unstable subgrade areas that may require repair. <br /> It is recommended the gravel parking and drive areas be evaluated by a Geotechnical Engineer <br /> through a combination of visual inspection, proofrolling and verification of stone thickness using <br /> hand augers or excavation tools. <br /> The proofrolling should be performed with a tandem-axle dump truck with a minimum weight of <br /> 10 tons and a maximum weight of 20 tons. This weight range should not require additional load <br /> be added to the truck. Proofrolling will provide a means to gage the condition of the parking lot <br /> and the need for additional stone, as well as identify unstable areas that may require repair. <br /> If you have any questions regarding the recommended scope of the parking lot evaluation, please <br /> contact our office at 919 732-3883. <br /> Prepared by, <br /> Don Dewey, PE <br /> Senior Geotechnical Engineer <br />