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Page 26 <br />kimley-horn.com 2828 Colby Avenue, Suite 200 Everett, WA 98201 425-708-8275 <br />·Definition of overall bridge geometry, including horizontal and vertical alignment, span <br />lengths, deck width, and vertical clearance over North Broadway. <br />·Preliminary identification of substructure elements, including pier locations, abutment <br />types, and foundation concepts, informed by available geotechnical information. <br />·Development of typical sections reflecting main structural elements, and pedestrian clear <br />width. <br />·Identification of bridge limits and landing locations, including interface with campus <br />pathways, sidewalks, ramps, and/or elevators. <br />·Concept-level consideration of constructability, access, and anticipated impacts to North <br />Broadway. <br />Stormwater Design <br />Kimley-Horn will advance stormwater considerations from the Alternatives Analysis to support <br />TS&L development and overall site feasibility. Stormwater design is anticipated to include: <br />·Confirmation of applicable City of Everett stormwater requirements, including flow control <br />triggers associated with the proposed improvements. <br />·Preparation of rough stormwater calculations to evaluate runoff impacts and preliminary <br />facility needs. <br />·Identification of anticipated stormwater management facilities, including general location, <br />type, and relative size, consistent with urban site constraints and the intent to match <br />existing conditions where feasible. <br />·Preparation of a stormwater technical memorandum documenting assumptions, <br />methodologies, preliminary calculations, and stormwater approach at the ~30% design <br />level. <br />Stormwater design at this stage is intended to establish feasibility and inform coordination and <br />cost development and will not include detailed hydraulic modeling, final facility sizing, or final <br />design. <br />Cost, Schedule, and Risk <br />As part of the ~30% design effort, Kimley-Horn will: <br />·Prepare a preliminary construction cost estimate, including a planning-level Rough Order <br />of Magnitude (ROM) and an updated estimate suitable for tracking anticipated PS&E- <br />level costs. <br />·Develop a preliminary construction schedule and phasing approach based on the <br />selected bridge concept and constructability assumptions. <br />·Update the project risk register to reflect risks identified during alternatives evaluation <br />and preliminary design development, including cost, schedule, and constructability <br />considerations. <br />Coordination and Grant Support <br />Kimley-Horn will update the project coordination plan to reflect anticipated agency reviews and <br />decision points required to advance into final design. If applicable, Kimley-Horn will prepare <br />deliverables to support grant coordination or funding documentation, consistent with the level of <br />design completed under this task. <br />Assumptions: