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<br /> • ~ . <br /> URS Greiner Woodward Clyde 111 SW Columbia, suite 900 <br /> Portland, OR 97201 <br /> A Division of URS Corporation Tel: 503.222.7200 <br /> Fax: 503.222.4292 <br /> March 12, 1999 Offices Worldwide <br /> Mr. Steve Gallup <br /> Public Works Engineering <br /> City of Eugene <br /> 244 East Broadway <br /> Eugene, Oregon 97401 <br /> j Subject: Prelinunary Design of the Frederick Ct. Storm Drainage System Improvements <br /> i <br /> E <br /> Dear Steve, <br /> t <br /> i <br /> This letter proposal represents our proposed Scope of Services and cost estimate to provide a . <br /> ~ hydrologic hydraulic analysis and preliminary design of drainage system improvements for the <br /> Frederick Ct. storm drainage system. The Scope of Services describes our approach to provide a <br /> hydraulic analysis of the storm drainage system from Monroe St. to its outfall into Amazon Creek. <br /> Based on the results of the hydraulic analysis, we will complete a preliminary design of drainage <br /> system improvements. This letter proposal contains the following information: <br /> • Our understanding of the existing flooding problems <br /> • scope of services for the hydraulic analysis and preliminary design <br /> • City services required <br /> • project lead person and technical support staff <br /> • estimate of hours and costs by task to complete the scope of work <br /> • schedule of work <br /> i <br /> EXISTING CONDITIONS <br /> The Frederick Ct. stormwater drainage system, located in the Amazon Creek Basin, originates at <br /> i the City limits along Sundial and W. 40`h. The drainage system upstream of Frederick Ct. is a <br /> combination of pipes and open waterways. Near W. 34~' and Olive, the drainage system is piped <br /> until its outfall into Amazon Creek. Piped segments adjacent to Delwood Drive and between W. <br /> 37`h and Frederick Ct. appear to constrict flows from upstream development. In addition, several <br /> of the open waterway segments do not have adequate access for maintenance. In response to these <br /> problems, we have developed the following scope of work and cost estimate: <br /> SCOPE OF SERVICES <br /> Task 1-Frederick Ct. Storm Drainage System Analysis <br /> Objective: Develop ahydrologic/hydraulic model of the Frederick Ct. drainage system. Use the <br /> model to complete a hydraulic analysis of the drainage system. Identify pipe segments or open <br /> waterways that do not have adequate capacity. <br /> <br />