Res 2006-048 - Laserfiche WebLink

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1.2 TASK 1 - PRELIMINARY DESIGN I The Engineer will: 1.2.1 Participate on a Project team comprised of the City's representatives and the Engineer's representatives. The Engineer will meet with the Project team to set the design and production schedule and parameters for all subsequent work, to verify the components within which all Project participants must perform, and to identify all parties and significant deadlines involved in the comprehensive schedule strategy. Based on this information, the Engineer will prepare a detailed schedule of its work for the Project addressing each component of the work to be done, indicating the points of involvement of all project participants. I I 1.2.2 Assist the City in connection with the City's responsibility for filing documents required for the approval of governmental authorities having jurisdiction over the Project. 1.2.3 Begin preliminary design utilizing the City's geotechnical investigations. 1.2.4 Understands that the City will provide permitting support from State and federal regulatory agencies, with assistance from the Engineer as necessary. 1.2.5 Provide Preliminary Engineering wherein the Engineer will: a) Base Map production - Collect previous topographic information in the Park area surrounding Rio Vista Dam. The Engineer will overlay new field surveys provided by the City and examine all topographic information for accuracy in developing a base map for Project development and design. The Engineer will prepare a base map that will show existing surface features including dam crest, spillway, mill race spillway and crest, Cheatham Bridge and San Marcos River, and Park pavilion, and right bank retaining wall starting approximately 100 feet below Cheatham Bridge and extending upstream to above the end of the right bank retaining wall and extending out at least 500' either side of the river centerline. b) Grading Plan - Develop a grading plan for the right bank. c) Existing Hvdrologv and Hvdraulic Models - Collect and review Hydraulic Engineering Center HEC-RAS computer model of the San Marcos River provided by the City through Espey Consultants, the City's consultant on the Flood Protection Plan. This model will be used as the existing condition without project model. d) Design Storm Event - Reach agreement with the City and Texas Commission on Environmental Quality (TCEQ) on which design storm event to use for dam safety purposes. Currentl y, the Engineer anticipates using the 100- year event. The Engineer will provide the City with requested 10, 50, 100, and 500-year flood profiles for the park reach. e) Construction Site Plan - Develop a construction limit line for inclusion on the base map to identify and limit the extent of the contractor's operations. e) Dam Safety Concerns - Provide input to the City and REP on dam safety issues however not be responsible for in-stream design and construction. Halff Prof, Services 3