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17060 P a g e | 5 Proposal for Storm Drain Pump Station Improvements Projects BRADFORD PUMP STATION easements identified in the current title report or on a record map will be plotted by the Consultant. All found monuments will be shown on the Survey Base map. Deliverables: Survey Base Map: (1) Hard Copy and (1) electronic Adobe Acrobat (PDF) copy. Task 2.8 – Perform Geotechnical Investigation and Analysis A site-specific geotechnical investigation will be performed for the pump station site by the geotechnical subconsultant. The geotechnical subconsultant initially will conduct an office study in-depth review and evaluation of existing geotechnical report information available. Subsurface exploration and testing will consist of: two 60- foot deep mud rotary geotechnical boring will be performed at the pump station site to provide more updated geotechnical information for use in current analyses, driller coordination, utility marking, and laboratory testing. Geotechnical analysis of the boring test results will include: capacity of existing foundations, settlement analyses, liquefaction, analyses, foundation recommendations and design parameters, and seismic loading criteria. The findings of the geotechnical study and borings will be summarized in a geotechnical design memorandum. Prior geotechnical reports will be referred to and included in the appendices of the geotechnical design memorandum. The memorandum will make foundation and pavement recommendations for use during design. Deliverables: Draft and Final Geotechnical Design Report: Five (5) hard-copies and one (1) electronic Adobe Acrobat (PDF) copy will be provided for each Draft and Final submittal. Task 2.9 – Pump Station Physical Hydraulic Model The hydraulic modeling subconsultant will perform physical modeling of the proposed Bradford Pump Station. The physical hydraulic modeling objective is to evaluate the intake geometry and approach hydraulics for the pumps. Physical hydraulic modeling is necessary to comply with ANSI-HI 9.8 Hydraulic Institute Intake Design (2018) standards 9.8 and 9.6.6. The model will be designed to simulate the new proposed influent storm drain, the sluice gate opening (gate will not be used to control flow), the baffle wall, and the pump bays. All four duty pumps and the low flow pump will be represented in the model. The physical modeling will be performed in at hydraulic modeling subconsultant’s laboratory located in Canada. Witness testing will be performed via a 2-hour video conference. Hydraulic modeling will include the following subtasks: 1. Model Design and Construction 2. Model Testing 3. Reporting 4. Model Dismantling and Disposal Deliverables: Physical model layout drawings Photos of the completed model Model testing video Video conference witness testing One (1) electronic Adobe Acrobat (PDF) copy will be provided for each Draft and Final Hydraulic Model Technical Memorandum submittal. ATTY/AGR.2021.257/Wood Rodgers, Inc. (Bradford Storm Drain Pump Station Design) (Page 16 of 40)