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Exhibit A <br /> CONSt/L7tNG fNClNEERS FOR P~1VEMfN7S <br /> PAVEMENT SERVICES, INC. 5+411J.f.zO"AVEI3UE,SUl7E107 <br /> PORTtA?JD, OREGON 97232-1662 <br /> 503.235.0377 • F~Vf 503.235.2665 <br /> Ps~slPDx.coM <br /> October 27, 2006 <br /> Mr. Steve Gallup, PE <br /> City of Eugene Public Works Engineering <br /> 244 E Broadway <br /> Eugene, OR 9"]401 <br /> Re: Chad Drive/Old Coburg. Road improvementProject -Pavement Design Proposal <br /> Steve, <br /> In response to your request, I am pleased to submit the following proposal and fee estimate to provide <br /> pavement design recommendations for the Chad Drivel0ld Coburg Road Improvement Project. <br /> Project Understanding <br /> The project will extend Chad Drive. to connect with North Game Farm Road. The proposed alignment <br /> for the extension turns north just beyond the present east end of Chad Drive and runs approximately <br /> 1,200 R earth along. the alignment of Old Coburg Road where it then angles northeast across farmland <br /> to a new intersection with North Game Farm Road at approximately 400 ft southeast of the present Old <br /> Coburg Road it3tersaction. In a separate project, North Game Farm Road will also be improved from <br /> the new intersection southeast to the City limits of Springfield by widening and rehabilitation or <br /> reconstruction. Our proposed pavement investigation far that pra,~ct is covered by a separate <br /> proposal. However, we plan to combine the field Investigation work for these two projects to save <br /> mobilization costs and will prorate the combined cysts between the two projhcts. Our proposed work , <br /> program and fee estimate for the Chad Dr pavement design. are described below. <br /> Pavement Investigation and Design Work Scope <br /> 1. Field iavestigatian & Testing <br /> We have assutrred that the City will arrange for right-of-entry far baring explorations within the <br /> sections of new alignment. crossing private property. <br /> Our project englrteer will visit the site to b~:ome familiar with project conditions and to mark boring <br /> exploration locations for underground utility clearance. <br /> Falling Weight Deflectometer (FWD) non-destructive deflection tests will be conducted at 100-foot <br /> intervals in both directions on the existing alignment of Chad. Drive to obtain data. for estimating the in <br /> situ resilient modulus of the subgrade soil. <br /> Shallow boring explorations (maximum 5 foot depth) will be conducted. to log the subgrade soil <br /> conditions and obtain samples for laboratory testing at two locations where the new alignment crosses <br /> fields and at one location within the Old Coburg Road alignment. The exploration holes outside of <br /> pavement areas will be backfilled with loosely compacted. excavated materials. The exploration hole <br /> within the pavement will be patched below the bound pavement layers with compacted native- materials <br /> and the bound pavement layers will be patched using "Instant Road Repair°, an ODOT QPL approved <br /> high performance asphalt patching material, compacted by vibratory hammer. We will provide traffic <br /> control (signs and flappers) for our testing and exploration work within the madway. <br /> 2. I.abaratary Testing <br /> Soils samples from the explorations will be tested in our laboratory for soil classification, evaluation of <br /> <br /> compaction and determination of resilient modulus (Mr). The natural water content will be deternuned <br /> for all samples and the samples will be examined for visual reclassification. One bulk sample will be <br /> <br /> tested to determine optimum moisture content and maximum dry density for evaluation oP sail <br /> <br />