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SCOPE OF WORK <br /> EUGENE DELTA PONDS PERMITTING SUPPORT <br /> City of Eugene <br /> Modification #2 <br /> May 5, 2005 <br /> Task 1-Additional Hydrologic and Hydraulic Analyses. Krey Price will conduct additional <br /> hydrologic and hydraulic analyses to provide the following information: <br /> i. Compile Willamette River hydrologic data through current water year. Analyze <br /> streamflow records to predict flow frequency. <br /> ii. Compile 2004-2005 gage data from Delta Ponds and Willamette River staff gages. <br /> Analyze readings to correspond to average daily Willamette River discharges. <br /> Develop stage-discharge relationships for Willamette River water surface elevations <br /> and correlate to flow frequency to predict available head at culvert inlets and tailwater <br /> at Diedrich Slough outlet. <br /> iii. Update IiEC-RAS model to reflect two with-project scenarios: <br /> a. Two 6'x6' box culverts at inlet and l2' span culvert at Goodpasture Island Rd. <br /> b. Three 6'x6' box culverts at inlet and 18' span culvert at Goodpasture Island Rd. <br /> iv. Run looped network hydraulic model to identify discharges (including Willamette <br /> River, inlet culvert, and local Dedrick Sloughlstormwater inflow) corresponding to <br /> 390' water surface elevations in Pond D for both with-project scenarios. <br /> v. Determine likely operating scenario to maintain pond elevations at or below 390' <br /> elevation under a variety of conditions (combination Willamette River and stormwater <br /> inflow, 12' vs 18' culvert spans, etc.) <br /> Task 2 -Provide Summary Memo of Results and Recommendations. <br /> Prepare summary memo for submittal to the City of Eugene and Corps and provide information to include <br /> in either Water Rights Permit Application or STEP proposal. <br /> Task 3 -Attend Team Meetings <br /> This task includes attendance at up to three team meetings, 2 at the Corps and one at the City, to be <br /> attended by Krey Price and Merri Martz. <br /> Task 4 -Principal Time /Contract Management <br /> Project management time is allotted to select tasks for scheduling oversight, quality assurance, and <br /> coordination. Principal time is allotted for review and coordination of invoices and review for legal <br /> consistency of contract documents. The principal will ensure that the appropriate company resources are <br /> made available for execution of this contract, and will ensure QA/QC for the overall effort. <br /> The proposed cost is attached in Attachment A. The cost to complete this work is based on negotiated <br /> contract billing rates for labor and materials. <br /> <br /> iw~' <br /> <br />