Agmt21 Wood Rodgers, Inc. - Laserfiche WebLink

Browse Search

17060 P a g e | 7 Proposal for Storm Drain Pump Station Improvements Projects BRADFORD PUMP STATION This will provide the City with the most efficient use of their funds and resources to meet the required capacities. Deliverables: Draft and Final Alternatives Analysis Reports: Five (5) hard-copies and one (1) electronic Adobe Acrobat (PDF) copy will be provided for each Draft and Final submittal. Task 3.2 – Preliminary Engineering Report (Basis of Design Report) The consultant team will prepare a Preliminary Engineering Report (a.k.a Basis of Design Report) to summarize assumptions, recommendations, and design criteria based on design standards and codes for the replacement of the Bradford Pump Station, for City review. The consultant team will not prepare demolition drawings, nor salvage value estimations of the existing Bradford Pump Station pumps and electrical equipment to be abandoned in-place. The consultant team will not assess the condition of the existing equipment, nor make recommendations for refurbishment or replacement equipment. The Consultant will coordinate input from the City Maintenance staff and make recommendations for the long-term plan for the Bradford Pump Station. If it is determined that demolition / decommissioning of the existing pump station is recommended, then Task 7.3 includes the scope for the design. The corrosion engineering subconsultant will design an impressed current cathodic protection (CP) system to protect ductile iron or steel pumps, associated piping, and flap gates inside the pump station. As part of the preliminary design process, the need for water sampling and testing will be determined. If water sampling and testing is recommended, then it will be done by the City as directed by the corrosion engineer. The Preliminary Engineering Report will include a controls description summary including on/off level set points of pumps, lead / lag pump configurations, on/off set points of the trash rack, sensor description, control loop descriptions, and alarm descriptions. Charts and figures will be included as needed to convey the controls schema and set points. The Preliminary Engineering Report will identify key design elements and include 30% plan drawings. The 30% plan drawings will include the proposed civil site layout, mechanical equipment layouts, pump station sump structural layout, and electrical equipment single line diagram. The report and drawings will be provided for review and approval by City engineering and operations staff. The report and drawings will take into consideration elements crucial for design, including: 1. Hydraulic Design Criteria, including Hydraulic Institute guidelines 2. Structural Design Criteria 3. Mechanical & Electrical Design Criteria 4. Geotechnical Design Criteria 5. Site survey, site constraints, and access 6. Perimeter wall / fence 7. Aesthetic treatments of perimeter wall / fence and permanent signage 8. Operational requirements and reliability 9. Temporary bypass pumping requirements 10. Equipment arrangement, access, and maintainability 11. Types/styles of pump, trash rack and other equipment preferred ATTY/AGR.2021.257/Wood Rodgers, Inc. (Bradford Storm Drain Pump Station Design) (Page 18 of 40)