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€j+ MCFADDEN AVENUE PROTECTED BIKE LANE AND sq BICYCLE BOULEVARD PROJECT CITY OF SANTA ANA Task 2 — Preliminary Research & Investigation Task 2.1 — Topographic Surveys (Optional Task): Dokken with Guide Surveying, Inc. will provide topographic surveys of The McFadden Bike Project as follows. Aerial Topographic Survey Aerial photogrammetric survey methods will be utilized to capture digital color imagery along McFadden Avenue from Fairview Avenue to Main Street. Horizontal and vertical aerial control panels will be set to meet aerial triangulation requirements and tied into the survey controls established for the project. A digital topographic map at a scale of 1" = 40' with a 1-foot contour interval will be compiled over the project limits. Color digital orthophotography at a scale of 1" = 50' with a pixel ground resolution of 0.25 foot (200 pixels per inch) will also be provided. Record Land Net (Centerline and Right -of -Way) Surveys: Cadastral research will be performed for the project area with the County of Orange and the City of Santa Ana for existing centerline and right- of-way files and/or available cadastral records in support of the record boundary of the streets affected by the project. Record right-of-way surveys will be performed for the project area and will include research for existing centerline monuments and controls to tie the record boundary to the topographic mapping data. The record map will include record centerlines, rights -of -way of the adjacent streets, and lots/easements taken from the recorded tract and parcel map information, as well as underlying cadastral, title, and ownership information as recorded with the Orange County assessor's offices. Task 2.2 — Supplemental Topographic Surveys: Conventional ground survey methods will be utilized to supplement the aerial mapping and collect detailed topographic data at ADA ramp locations, bulb outs and in areas of proposed hardscape improvements. The topographic data may include curb and gutter, flowlines, walkways, building corners, walls and fences, hardscape features, trees, driveways, surface visible utility features (meters, cabinets, pull boxes, manholes, catch basins, poles, etc.). The topographic data will be downloaded, processed, and tied to the horizontal and vertical control established for this project. The topographic data will be plotted in CAD, incorporated with the aerial mapping and a digital terrain model (DTM) created for the existing ground surface, if applicable. The final deliverables will include the digital terrain model, topographic data plotted in CAD and an ASCII file of the topographic survey points. For the purposes of this proposal, 120 field crew hours and associated office processing and mapping time has been included. This task will be performed at the direction of the design team. Task 2 Deliverables: Topographic Survey Data and Digital Terrain Model for 1-foot Contours and an ASCII File of the Topographic Survey Points; Record Right of Way Mapping; Field Notes Task 3 — Drainage & Water Quality Design Task 3.1 — Draft/Final Drainage Memorandum: A Drainage Memo will be prepared to document any drainage modifications caused by project improvements. This scope assumes hydraulic analysis of the impacted facilities will be limited to inlet and open channel flow analyses in accordance with local methodologies. The analyses will indicate that proposed minor modifications will not result in decreased collection or conveyance capacities. This Memo will provide a brief discussion of the existing conditions, post -project drainage patterns and conditions, results of the on -site hydraulic analyses and any issues of special concern or significance. A draft Memo will be submitted to the City at the 60% PS&E milestone and will be finalized upon completion of the 100% Final PS&E submittal. Task 3.2 — Draft/Final Green Streets Water Quality Management Plan: Dokken will prepare a Water Quality Management Plan (WQMP) in accordance with the Orange County Model Water Quality Management Plan and Technical Guidance Document to comply with the Santa Ana Region Orange County MS4 Permit (Order No. R8-2009-0030 amended by Order No. R8-2010-0062). The WQMP will document the following Green Streets design features: • A description of the project and the major engineering features. • A description of the feasible Site Design Measures and Green Streets BMPs including justification of Measures and BMPs considered infeasible or not applicable to the project. ]7®KKEN Page 1 2 GNGINHLRINfI