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REV: 11-19-25 LR To support transparent and informed decision-making process, the Consultant will develop a decision matrix that incorporates key evaluation criteria, including flood reduction performance, constructability, environmental impacts, permitting complexity, operations and maintenance needs, and overall cost. This structured framework will help identify the most practical and cost- effective alternative(s) that align with project goals, regulatory requirements, and community priorities. The goal is to identify the single most practical and cost-effective solution that aligns with community objectives and regulatory requirements. d. Task 9.d Prepare 10% Plans/Profile of Selected High Priority Alternatives: the Consultant and its team will develop conceptual alternatives to a 5-10% design level to inform project elements and concepts for considerations by the Technical Advisory Committee (TAC) based on information collected in Task 2 and early stakeholder feedback collected in Task 15. The alternatives will provide elements to mitigate impacts from SLR, increasing precipitation, and rising groundwater. The alternative will also be guided by the Universal Design Principles, as well as the RSAP and the City’s guidance (City Engineer or designee, and City’s Project Manager). Alternatives will also take into consideration existing infrastructure that will influence design solutions and selection, including existing bridges, culverts, and tie-ins with other levee improvements. With insights from the existing conditions analysis, public engagement and permitting strategies, the Consultant will develop conceptual alternatives that integrate hydraulic performance improvements and adaptability with landscape and public realm enhancements. This multidisciplinary effort will not only address channel capacity but also nature- based solutions, habitat restoration, and public access opportunities, ensuring a balanced approach to flood resilience and ecological function. The Consultant will develop unit costs for each alternative and use the conceptual design plan views to provide a Class 4 cost estimate for each full alternative. Because of the variability of conditions, necessary height, view potential, environmental and other constraints, each alternative will likely include some combination of alternatives in different reaches, however each will be distinctly different from the others. The Consultant and Team will recommend criteria metrics to guide the alternative assessment to support CEQA, NEPA, and LEDPA analysis and incorporate input from the Project TAC and PMT. This includes clearly describing the needs, purpose, and practicality of each alternative considering space availability, logistics, use of engineering technology, and cost. It also includes identifying impacts to wetlands, open water, federally listed species, and upland floodplain areas. ATTY/AGR.2025.317/Wood Rodgers, Inc. (Page 24 of 77)