Agmt22 Environmental Science Associates

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REV: 10-25-2022 RL Vulnerability Meeting: Consultant shall conduct a meeting with City Staff to present a list of potential vulnerability locations and select high-value locations for further consideration in the study. Task 3 – Adaptation Strategies Based on the shoreline reaches identified in Task 2.3, Consultant shall develop adaptation strategies for each reach that aim to protect the residents and property of Redwood City from the flood hazards of future sea-level rise. Consultant shall develop a selection of conceptual measures tuned to each of the reaches identified in Task 2.3. Measures may include physical barriers (e.g. levees, floodwalls). Consultant shall also identify areas where flood protection is potentially compatible with nature-based approaches, such as ecotone slope, coastal wetland buffer zones, and/or living shorelines. Consultant shall have up to three conceptual-level alternatives for consideration for each shoreline reach, and Consultant shall evaluate the conceptual performance of alternatives based on cost-effectiveness, flood reduction efficacy, and overall feasibility (permitting, institutional/public acceptance, etc.) on a qualitative basis. Consultant shall also recommend tie-ins between City reaches, and where appropriately, likely flood protection measures in adjoining cities. Consultant shall develop costs at a rough-order-of- magnitude (ROM) scale. Cost estimates shall include the following: Costs of construction, with an appropriate level of contingency Estimate of design, permitting, mitigation, and regulatory compliance costs, as well as the cost of potential supplemental tasks which may be required in future design phases Consultant shall also identify missing or incomplete information that may significantly affect estimated costs as soon as possible Deliverables Consultant shall draft a PowerPoint presentation of conceptual schematics for identified alternatives for City Staff review, which shall include conceptual comparison of alternatives, including ROM costs Alternatives Meeting: Consultant shall present a list of candidate flood management measures and alternatives for each of the locations identified earlier and recommend a limited subset for further consideration in the study. Consultant shall prepare a final draft of adaptation measures that shall address City Staff comments during the Alternatives Meeting and be incorporated in the Study Report. Task 4 – Study Report Consultant shall synthesize and present all study findings in a report, as previously documented in memos and presentations. The report shall have an executive summary and summarize the methodology, sea-level rise vulnerabilities, and recommended adaptation strategies. The report shall also include all information compiled or generated through the study, including study sources and data, vulnerability assessment, proposed ATTY/AGR.2022.381/Environmental Science Associates (Page 13 of 17)