Laserfiche WebLink
REV: 11-07-23 SK <br />Geologic site conditions and seismicity of the project site, including <br />distance to the active faults in the region and probability of a major <br />earthquake on each fault. <br />Seismic design parameters for the proposed site improvements per <br />the 2022 California Building Code and ASCE 7-161. <br />Potential for liquefaction beneath the site, potential consequences <br />and suggested remedial measures, if appropriate. <br />Specific subsurface conditions discovered by the borings and/or as <br />reveals by the review of available geotechnical/geologic information, <br />such as expansive, loose, saturated, collapsible, or soft surface and <br />subsurface soils that may require special mitigation measures or impose <br />restrictions on the project, including the thickness and consistency of the <br />existing fill soils and bay mud soils and recommended groundwater <br />elevation to be used for design. <br />Criteria for site grading, including allowable cut slopes, requirements <br />for shoring design, placement of fills and backfills, preparation of <br />subgrades for mat foundations and slabs-on-grade and trench backfill <br />requirements, as well as the suitability of the on-site soils for use as fill <br />and backfill material. <br />Criteria for design of shallow spread footings and mat foundations <br />for both static and seismic conditions, including allowable bearing <br />pressures and subgrade modulus, design active and passive pressures, <br />as well as seismic pressures for foundations and below grade walls, <br />estimate of post-construction total and differential settlements for the <br />new improvements. <br />Deliverables for task 2: Existing Conditions Topographic Survey (PDF), Structural <br />Assessment (PDF), Geotechnical Report (PDF), and Plat and Legal Descriptions (PDF). <br />TASK 3: HYDROLOGIC AND HYDRAULIC ANALYSIS AND PHYSICAL HYDRAULIC <br />MODELING <br />Subtask 3.1 – H&H Analysis <br />Consultant will obtain the latest City model prepared for the latest ELLA- <br />DMP Eastern Low-Lying Drainage Master Plan in InfoWorks ICM modeling <br />format by the City. Consultant will revise the improved City’s model with the <br />anticipated Price Tract Storm Drain Pump Station design flows and operation. <br />Consultant will re-run the 100-year level of service design storm. Consultant <br />will study the results of the system and evaluate if or how the proposed pump <br />station design impacts the system. Consultant will confirm if the existing outfall <br />pipe has sufficient capacity to convey with 100-year storm flows without <br />surcharging the discharge vault. <br />Subtask 3.2 – System Recommendations <br />ATTY/AGR.2023.241/BKF Engineers (Price Tract Pump Station Design) (Page 16 of 54)