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INTER•FLUVE, lNC. <br /> Streams, Lakes & Wetlands Design, Construction & Restoration Since 1983 <br /> March 15, 2001 <br /> Mr. Brian Genovese, P.E. <br /> Public Works Engineering <br /> City of Eugene <br /> <br /> 244 East Broadway - <br /> Eugene, OR 97401 <br /> Re: Proposal for W 34`x' Avenue Drainage <br /> Stream Enhancement Design <br /> <br /> Dear Brian: <br /> Inter-Fluve, Inc. (Inter-Fluve) is pleased to respond to your request for this proposal to provide <br /> technical assistance to City staff for design of stream enhancements for the W 34th Avenue <br /> <br /> Drainage. Inter-Fluve (as a subconsultant to CDM/AGI) has recently completed an evaluation of <br /> <br /> existing site conditions and developed a preliminary design concept to return the flow to a natural <br /> <br /> stream course. <br /> Proposed Scope of Work <br /> <br /> This draft scope of work outlines Inter-Fluve's proposal for providing the City with technical <br /> assistance during design and construction phases of the stream enhancement project. Table 1 <br /> (attached) provides a Iist of tasks anticipated for the project and shows a proposed allocation of <br /> <br /> tasks and responsibilities among the City, Inter-Fluve, and the CDM/AGI. Attachment A provides <br /> a description of the survey to be conducted by City staff.. Tasks to be conducted by Inter-Fluve and <br /> CDM/AGI are described below. <br /> Task 1 -Project Management (Inter-Fluve). Prepare monthly invoices. Invoices shall identify <br /> expenditures (including hours and direct costs) by task and shall include budget summaries by task. <br /> Inter-Fluve has allocated 16 hours of staff time for this task. <br /> Task 2 -Technical Mentoring (Inter-Fluve). Inter-Fluve's staff will be available to City staff <br /> for discussion and assistance with landscape,restoration, construction issues identification, <br /> floodplain grading, and biotechnical stabilization methods and alternatives. Inter-Fluve has <br /> allocated 32 hours of staff time for this task. <br /> Task 3 -Subsurface Investigation (CDM/AGI). The initial investigation developed some <br /> important information about subsurface conditions, but had to "stop short" because of restrictions <br /> placed on the use of larger equipment. Our design will be influenced by the near surface presence <br /> of bedrock, which must be verified before final design and construction. CDM/AGI will provide a <br /> mini track orrubber--tired backhoe to excavate test pits at several locations along the corridor to <br /> confum the presence of bedrock at shallow depth. This task will include: <br /> • No unreasonable limitation on the equipment, access route, or vegetation damage. <br /> CDM/AGI anticipates using a conventional rubber-tired backhoe for 6 hours. We would <br /> negotiate the site responsibly, but some damage to the vegetation should be expected. <br /> 1020 Wasco St., Suite I • Hood River, OR 97031 • 541!386-9003 • Fax: 541/386-9241 <br /> <br />