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<br />connections, below grade manhole buoyancy, allowable foundation uplift capacity, ground <br />improvement, if needed, static lateral earth pressures, dynamic lateral earth pressure, <br />coefficient of base friction, and permanent structure design groundwater level, soil corrosivity <br />to uncoated steel and reinforced concrete. <br /> <br />Submit a geotechnical report including a scaled alignment drawing with boring locations, geotechnical <br />data (boring logs} lab tests) and geotechnical design summary (conciusions and recommendations as <br />summarized above). <br /> <br />DeUverables: <br />· Draft geotechnical investigation report (three hardcopies and .pdf file) <br />· Final geotechnical investigation report (three hardcoples and .pdf file) <br /> <br />Subtask 3.3: Caltrans Permitting <br />RMC will initiate discussions with Caltrans on obtaining an encroachment permit for crossing if Highway <br />101. It is assumed that the crossing requirements are as defined in the Caltrans Encroachment Permit <br />Manual, particularly In Section 600 - Utilities Permits. <br /> <br />Deliverables: <br />· Summary memorandum of discussions with Caltrans Encroachment Permits staff, Including next <br />steps for the permit application process. <br /> <br />Subtask 3.4: Transition Structures Development <br />RMC will develop the configuration and sizing for the hydraulic transition structures needed to connect <br />the existing 4811 sewer to the propose Walnut Street interceptor replacement pipeline. The <br />configuration for the transition structures will include provisions for using one or both pipelines to <br />convey sewage. <br /> <br />Deliverables: <br />· Figures presenting the proposed configuration of the transition structures. <br /> <br />Subtask 3.5: Trenchless Construction Alternatives Evaluation <br />RMC will evaluate up to three alternative trenchless construction methods for the project. The <br />alternatives will include microtunneling, auger bore and jack} and open shield pipe jacking. <br />Considerations in developing the alternative method will include groundwater conditions, soU regime, <br />Installation tolerances, and cost and experience In similar conditions. The evaluation will culminate in a <br />recommended method for the basis of final design. <br /> <br />RMC will evaluate settlement risks for Highway 101 and existing utilities, including the force main, <br />recycled water pipeline, and parallel gravity sewer for each trench less alternative and alignment <br />evaluated. Recommend protective/mitigative, and instrumentation and monitoring measures. <br /> <br />1- <br /> <br />L <br /> <br />Subtask 3.6: Preliminary Design Technical Memorandum <br />RMC will develop a preliminary design of the preferred alignment, Including design criteria, layout and <br />configuration drawings, list of technical specifications, and a construction cost estimate. Other <br />recommendations related to the design and construction of the facility will be included as appropriate. <br />The intent of the preliminary deSign technical memorandum Is to serve as the basis for final design of <br />the project. <br />