20C - AA - STORM DRAIN MASTER PLAN

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Storm Drain Master Plan Task 4.3 Atlas Map Creation RBF will create electronic (PDF) Atlas Maps for the City utilizing ArcGIS or Microstation. For cost estimating purposes, the atlas maps are assumed to be 17x22 maps at 1"=200' scale for the entire 27 square miles city area. A draft of the atlas maps will be provided to the City for review prior to finalizing the Atlas maps for the whole city (approximately 67 sheets). The atlas maps will include industry standard symbolization; attribute labels and features the City determines necessary as part of an annotation feature class suitable for 17x22-inch mapping. Atlas maps are assumed to be Black and white for ease of plotting and reduced costs to the City for future reproduction. Deliverables: 1. Altas maps at 1"= 200' TASK 5 Report Task 5.1 Draft Report - Storm Drain Master Plan Document RBF will provide engineering services for the compilation of a new Storm Drain Master Plan to support the proposed hydrology and hydraulic analysis and recommended drainage facilities. The written report will serve as the technical documentation for the preliminary engineering design and selection of the recommended watershed improvements. This report will include the background for the watershed investigation, hydrologic modeling, hydraulics analysis, alternatives analysis, storm drain design and sizing, and flood protection requirements. This document will serve to reference the design assumptions, guidelines, and criteria developed for the project. The text of the document will be prepared in MS Word. The draft Report will also serve as the initial engineering submittal package for the facility for review by the City. The engineering analysis and associated documentation will include (1) hydrology analysis, (2) watershed evaluation (3) existing systems hydraulic capacity, (4) facility design considerations, (5) required systems hydraulics, (6) feasibility alternative investigation and design selection matrix, and (7) facility construction costs. The report will be prepared in a format agreed to by the City. Deliverables: 1. One (1) PDF, and three (3) hard copies will be provided of Draft Report. Task 5.2 Final Report - Storm Drain Master Plan A final report will be prepared which incorporates comments and modifications from the draft review by the City. Deliverables: 1. Twenty (20) copies of the final main report will be provided to the City, 2. Three (3) copies of the Appendix. 3. Copies of all files will also be provided on a CD. Task 5.3 Final Drainage Exhibits / Maps Provide engineering services to generate the final drainage map exhibits associated with the master plan of drainage. These drainage exhibits will consist of the following: ¦ Drainage Index Map (Drainage Basins) • Watershed Hydrology Map (Basins and Drainage Districts) The hydrology maps will be prepared on the developed base sheets, modifying the existing drainage and will include the hydrologic concentration points or nodes clearly identified and the associated design discharge. Facility maps will indicate the recommended sizes and lengths for the backbone infrastructure. The drainage index map will be prepared at a suitable scale for use by City. 26 20C-27