Agmt25 Schaaf and Wheeler Consulting Civil Engineers

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REV: 07-08-25 VR FEMA accreditation to develop hydrologic and hydraulic models and studies that use climate projections to incorporate fluvial and combined flooding effects into long-term flood risk assessment. Identify any needs for the internal system, including pumping needs, to address higher levee elevations and other impacts of sea level rise such as groundwater emergence. InfoWorks ICM modeling software (or approved equal) to be utilized for hydraulic models. o Task 2.2.3. Aerial Survey, Mapping and Utility Location: Consultant to perform control establishment, utility research, and an aerial topographic survey. Consultant to conduct research with local utility agencies to obtain record map information for utilities along with the preferred alignment selected in the alternatives analysis (Task 4.0). Consultant to perform minimal field surveys as needed to verify the accuracy of existing data and utilities and structures of specific interest. Consultant to combine results with existing topographic survey data into a comprehensive Civil 3D drawing for design of the preferred alternative. Consultant to use available parcel and right-of-way information. o Task 2.2.4 Geotechnical Report: Consultant to provide geotechnical services to address geotechnical information gaps related to the levee system. Consultant work will include, but is not limited to: Site reconnaissance and notes of physical features Analysis using available data along the preferred alignment selected in the alternatives analysis (Task 4.0) Preparation of a Geotechnical Report o Consultant to perform a geotechnical site reconnaissance of the alignment alternatives and note physical site features that could impact the project. o Consultant to prepare a geotechnical report for the project based on site reconnaissance. The report shall address items including, but not limited to: site suitability for the proposed improvements; physical properties of the typical soils encountered in previous borings; geological/geotechnical hazards at the subject site; discussion of treatment of geotechnical constraints such as loose/soft surface soils, existing fills, compressible, expansive and/or liquefiable soils, lateral spreading, as necessary based on field exploration results, seismic design criteria; recommendations for grading, drainage, foundation for ATTY/AGR.2025.172/Schaaf and Wheeler Consulting Civil Engineers (Redwood Shores Sea Level Rise Protection) (Page 13 of 36)