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Exhibit A-1 Scope of Work <br /> Continued <br /> task is increased to include one round of comment response for the JARPA and one round of <br /> comment response for the WSDOT General Permit. <br /> Task 5 — Final Design <br /> 5.1 Final Design and Plan Sheets <br /> 4 Creek Grading, Trail Restoration, and Bank Armoring Design <br /> The scope for this task is increased to include final design of the following elements: <br /> 1. Revised channel alignment and section to allow 2:1 channel side slopes. <br /> 2. Revised bridge location and existing concrete wall demo and tie-in extents to align with <br /> revised channel location. <br /> 3. Additional row of tie-back anchors in the lower portion of the existing sheet pile wall. <br /> 4. Revised construction sequencing shown in the plans to reduce the potential for in-water <br /> work and to minimize sediment mobilization during culvert removal and channel grading <br /> activities. <br /> 6 Retaining Wall Design (3 sheets) <br /> This scope is increased to include final design of a solider pile wall east of the proposed channel <br /> with greater vertical and horizontal extents. <br /> 5.2 Specifications <br /> Otak will provide final bid-ready General Special Provisions (GSP) and project-specific Special <br /> Provisions for Divisions 2—9, excluding the landscape and planting Special Provisions to be <br /> prepared by the City per Amendment No. 1 scope. <br /> Per Amendment No. 1 scope,The City will prepare Division 1 of the Specifications and compile the <br /> master Contract Manual including all Contract and Bid Forms,Amendments to the WSDOT <br /> Standard Specifications, and Appendices. The City will incorporate Special Provisions provided by <br /> Otak. <br /> 5.3 Construction Cost Estimates <br /> Otak will prepare a final Engineer's Estimate for construction. <br /> W:\PW Eng\OTHER\Mike Perfetti\temp\Riverton Creek Flapgate\Riverton SOW Amend 2_18_0807.docx 3 67 <br />