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� phi I lip w. cochran* consulting engineer <br /> November 4, 2002 <br /> Mr. Matt Newell P.E. <br />�� City Engineer <br /> i City of Decatur <br /> #1 Gary Anderson Plaza <br /> Decatur, IL 62521 <br /> Subject: Engineering Proposal <br /> Karen Drive/Northland Heights <br /> I Greenridge Addition Drainage Study <br /> Dear Matt: <br />� I am pleased to submit the following proposal for preparing a preliminary drainage <br /> study/report for the Karen Drive/Northland Heights/Greenridge Addition drainage area. The <br /> existing drainage is primarily roadside ditch drainage with a limited storm sewer system. The <br /> study limits encompasses an area of approximately 200 acres boarded by Northland Drive on the <br />� South, Route 51 on the East, MacArthur Road on the West and Mound Road on the North. <br /> PWC AGREES <br /> 1.To research records to determine existing storm sewers, easements, drainage <br /> calculations , topographic data, contours, etc. Efforts will be made to find any record <br /> information that would help prepare an engineering analysis of the present drainage <br /> system. <br /> 2. To make the necessary field visits to evaluate the existing system , i.e. to help <br /> determine the adequacy or inadequacy of the present system and identify the area(s) of <br /> present drainage issues. <br /> 3. To make drainage calculations for the drainage area so that existing storm sewers and <br /> drainage facilities can be evaluated as to their capacity and functionability. <br /> 4. To make a recommendation for drainage improvements including preliminary cost <br /> estimates for the recommendations or alternatives discussed. <br /> 5. To complete all work within 120 days of notification to proceed. Three copies of the <br /> report will be submitted. <br /> 2602 north morgan • decatur, illinois 62526 • phone (217) 875-3333 • fax (217) 875-3371 <br />