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A-1.5 Prepare Conceptual Design Report <br /> A-1.6 Refine existing OPCC <br /> Products: <br /> P-1.1 Conceptual Design Report with Conceptual Figures <br /> TASK 2—30% Design <br /> Objectives: Provide preliminary (30%) design documents including drawings, list of <br /> specifications, and opinion of probable construction costs for review and <br /> comment. <br /> Approach: Utilizing the information from the Conceptual Design Report and related <br /> discussions, AECOM will prepare plans, list of specifications, and the opinion of <br /> probable construction costs to the 30% design level. The work will generally <br /> include demolition, proposed utilities, and restoration for the separated sewers <br /> along with accessory structures. <br /> This 30% design submittal will include basic outline drawings for the extent of <br /> work noted above. No detail sheets are anticipated for this submittal. A listing of <br /> anticipated specification sections will be included with this submittal. <br /> The 30% design documents will include an AACE Class 3 opinion of probable <br /> construction costs. A 20% contingency will be used along with a 15% allowance <br /> for contractor overhead and profit. <br /> Input: <br /> 1-2.1 Conceptual Design Report <br /> Activities: <br /> A-2.1 30% completion of plans <br /> A-2.2 30% listing of specifications <br /> A-2.3 30% completion of opinion of probable construction costs <br /> Products: <br /> P-2.1 30% plans, list of specifications, and opinion of probable construction costs. <br /> TASK 3—90% DESIGN <br /> Objective: Provide 90% design documents including drawings, specifications, and opinion of <br /> probable construction costs for review and comment. <br /> Approach: Utilizing the latest plans and specifications along with the City's review <br /> comments, AECOM will complete plans and specifications to the 90% level. The <br /> 90% level will include drawings and specifications to a level of development that <br /> is essentially biddable. The opinion of probable construction costs will be an <br /> update to the 60% design estimate with an AACE Class 1 estimate using 10% <br /> 3 of 8 <br />