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Page 33 <br />kimley-horn.com 2828 Colby Avenue, Suite 200 Everett, WA 98201 425-708-8275 <br />Task 2.06: Final (~90%) Design Deliverable <br />Kimley-Horn will advance the Intermediate (~60%) Design through Final (~90%) Design to <br />complete design development and prepare the project for PS&E and advertisement. The ~90% <br />design effort is intended to finalize technical design, confirm quantities, finalize permitting <br />requirements, and resolve agency and stakeholder comments prior to preparation of bid-ready <br />contract documents. <br />Final Design Development <br />Final design activities are anticipated to include: <br />·Advancement of the ~60% design to an approximate ~90% level of design, incorporating <br />agency, stakeholder, and utility comments received during the Intermediate Design phase. <br />·Finalization of bridge geometry, structural design, accessibility features, site connections, <br />and architectural and urban design elements. <br />·Final coordination across disciplines to confirm design consistency, constructability, and <br />compatibility with utility and permitting constraints. <br />·QA/QC review of plans, specifications, quantities, and contract documents to confirm <br />consistency and completeness. <br />While limited refinement may occur during final design, modifications to major design elements, <br />such as pedestrian bridge type, size, span configuration, alignment, or location, are not <br />anticipated at this stage. <br />The Final Plans are anticipated to include the same plan sheet types identified at the ~60% <br />level, refined to reflect final design intent and coordinated quantities. Plan sheets will be <br />developed at a level appropriate for final design review and comment. <br />Traffic Analysis <br />Kimley-Horn will perform detailed traffic analysis to support final design, MOT planning, and <br />coordination with the City and applicable agencies. This effort builds upon the planning-level <br />traffic operations evaluation completed during the Alternatives Analysis and will provide a more <br />detailed assessment of construction-related traffic impacts. <br />Traffic analysis activities are anticipated to include: <br />·Modifying the traffic models to evaluate anticipated traffic operations under proposed <br />construction staging and temporary closure scenarios on North Broadway. <br />·Signal timing analysis and evaluation, including review of existing signal operations and <br />development of temporary or modified timing plans, as required to accommodate detours <br />and construction-related traffic shifts. <br />·Detailed evaluation of detour route operations, anticipated to include Broadway, Tower <br />Street, Trojan Avenue, and 10th Street, with consideration of capacity, queuing, delay, <br />and safety impacts. <br />·Coordination with the City and applicable agencies to review analysis assumptions, <br />results, and recommended operational strategies during construction. <br />The traffic analysis will be used to determine final MOT plans and specifications and public <br />communication regarding anticipated construction impacts.