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<br /> <br /> <br /> <br /> Storm Drain Master Plan <br /> <br /> <br /> Implementation Plan <br /> <br /> Work Flan <br /> <br /> RBF's experience in storm drain and drainage master plans in Orange County has allowed us to develop a scope of <br /> work that is flexible to meet each municipality's needs. The work plan includes a kick-off meeting and monthly <br /> meetings for the remainder of the project which allows for routine coordination and feeback between team <br /> members. <br /> A few key elements of our work plan are highlighted below. <br /> After reviewing the City's RFP, we identified the selection of the appropriate hydrology model as a key element of <br /> a successful Storm Drain Master Plan for the City. Based on our experience and the City's desire to utilize the <br /> CivilStorm program for both hydrology and hydraulics modeling, we have included Task 2.1. Since the CivilStorm <br /> program does not directly include the County's hydrology method, this task will determine the best hydrologic <br /> model which will meet the master planning goals of the City, and supports Orange County Hydrology procedures, <br /> and is compatible with CivilStorm. <br /> Also, in order to take full advantage of CivilStorm's hydrodynamic modeling, a pipe network which includes both <br /> vertical and horizontal data needs to be developed. Based on information from the City, the GIS and Microstation <br /> base files include horizontal alignment, size and facility type up to 1994, including as-built indexing (where as-builts <br /> were available). Task 5.2 includes time to build the vertical component of the storm drain data needed to run the <br /> Civil Storm model. <br /> TASK 1- INVENTORY <br /> <br /> Task 1.1 Review and Compile Existing Watershed and <br /> Drainage Facility Data <br /> RBF will provide services to research, collect and review <br /> existing background data. Data collection includes existing==y <br /> City GIS drainage and watershed maps, utility index map, , <br /> soils data, "as-built" construction drawings for the local (Et <br /> ! r; <br /> storm drain facilities, existing hydraulic and master plans of <br /> drainage, previous project reports, proposed development r <br /> tentative maps or hydrology studies, EIR's, floodplain <br /> mapping, Army Corps of Engineers' reports, proposed <br /> development plans. In addition, a field reconnaissance <br /> investigation of the project study watershed area will be r , <br /> performed. The field investigation will include a verification <br /> of the watershed conditions and accuracy of the existing improvement plans. Field reconnaissance of the project <br /> site and the immediate adjacent conditions of the surrounding watershed will assess flow restrictions and general <br /> surface flow patterns. Collection of available information from the City / County regarding the floodplain, <br /> including channel improvement plans, adjacent development or improvements, right-of-way, rainfall data, <br /> floodplain delineation, maintenance information, flood damage surveys, FEMA studies, topographic data, utility <br /> information, property ownership, and geotechnical data. A field review with ground photo inventory and analysis <br /> will be included in the final report of critical areas of interest or locations of severe flooding. RBF will coordinate <br /> with Orange County Flood Control District (OCFCD) to obtain downstream water surface control elevations for city <br /> storm drains which connect to OCFCD facilities. <br /> Deliverables (to be included as an appendix to the main report): <br /> 1. Inventory Log of all data collected <br /> 21 <br /> 20C-22 <br />