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Osborn Consulting, Inc. 4/7/21 <br /> Exhibit A, Attachment A-2: Drainage and Landscape <br /> Architecture <br /> scope of services <br /> for <br /> California Street Pedestrian and Bicycle Corridor <br /> Phase 1 <br /> Task 1-4.1 Drainage Alternatives Analysis <br /> Assessment of drainage impacts of sidewalk and bike facility concepts (up to 3 concepts on each of 3 <br /> segments as described in Exhibit A:Scope of Work; <br /> • Segment A: California Street Multimodal Improvements, <br /> • Segment B:California St to Hewitt Avenue Connection: Fulton, Pine, Maple Streets, or midblock <br /> alley connections between California Street and Hewitt Avenue. <br /> • Segment C: Hewitt Avenue to US 2 Multimodal Improvements. <br /> Assumptions: <br /> • The entire project resides in the combined sewer basin. <br /> • The assessments are limited to matching existing stormwater durations and peaks and no storm <br /> water treatment is required. <br /> • No detailed stormwater modeling or memorandum. <br /> • No quantity take offs or cost estimating. <br /> Deliverables: <br /> • Assessment of drainage impacts summarized in a memorandum. <br /> Task 1-4.2 Landscape Architecture Alternatives Analysis <br /> Concepts for landscape architecture treatments to accompany the alternatives, same segments as <br /> described above <br /> Assumptions: <br /> • No quantity take offs or cost estimating. <br /> • No photo realistic renderings are included. <br /> • Maximum of 9 hand sketches <br /> • One revision for each sketch and one meeting to review <br /> Deliverables: <br />