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BACKGROUND AND APPROACH <br />Based on information provided by Mr. Matt Rodrigues, we understand that the Ciry is considering <br />rehabifitation of the above-listed road sections. We have completed a preliminary evaluation of <br />the existing pavements at the site. Based on our evaluation, we propose to complete shallow <br />cores and FWD testing on each road to evaluate the existing pavement conditions. Our specific <br />scope of services wiH incfude the following: . <br />. Complete a dist~ess survey of the existing pavement, including observing the extent of <br />fatigue and surface distress in areas that may require patching repair. <br />• Explore subsurface conditions in the proposed sectians by completing two to seven cores per <br />road section (recommended cores for each road is listed on the attached itemized sheet) to <br />depths of up to S feet below ground surface. <br />• Maintaln a detailed log of the explorations and obtain samples of the pavement, base, and <br />subgrade materials encountered. <br />• Provide traffic control and traffic control plans through our subcontractor. We anticipate that <br />pe~mitting requirements and fees will be handled by City personnel. <br />• Estimate the traffic loading by calculating ESAIs based on traffic data provided by the City. <br />• Conduct FWQ testing at 100- to 150-foot intervals in the outside wheel path of the exterior <br />lanes in both directions to evaluate the structural condition of the existing pavement and <br />subgrade modulus. <br />• Analyze the FWD data to back calculate the in-situ resilient modulus of the subgrade soils <br />and the effective structural number of the existing pavement structure. <br />• Evaluate rehabilitation and reconstruction options based on FWD testing, subgrade <br />conditions, soil borings, and traffic data. <br />• Provide consulting engineering services for design and review of potential cold in-place <br />recycling on Roosevelt Boulevard. <br />• Provide pavement field monitoring servites during construction of cold in-place recycling <br />operations. <br />• Provide a report summarizing our recommendations for each road section. <br />SCHEDULE AND FEE <br />We are prepared to begin the preparations for field work upon your written authorization to <br />proceed. Our recornmendations will be available 1 to 2 months following the field work. We will <br />provide a verbal surrimary of our findings as the information becomes available. <br />For the scope of services described, we will complete our work on a time-and-expense basis for a <br />not-to-exceed fee of 558,043.50. An itemization of our estimated expenditures is included as an <br />attachment. Pfease note that the above fee is based on performing testing while minimizing <br />travel between Eugene and Portland, with Geopesign personnel staying in the Eugene area when <br />possible. Our budget includes a total of one mobilization for FWD testing, one mobilization for <br />distress survey, one mobilization for borings, and two site visits for observing the cold in-place <br />recycling. <br />••• <br />~ <br />~~E51 G N~ Z Eugene-8-O l:062207 <br />