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21 <br />City of Sunny Isles Beach | RFQ 26-07-01 <br />Continuing Professional Architectural and Engineering | General Civil Engineer <br />Project Description <br />Atlas R26 (PCTS 16297) Base of Design Technical Memorandum <br />As part of Ross Engineering’s contract with Miami-Dade Water and Sewer <br />Department (MDWASD), Ms. Ross provided a technical memorandum to <br />evaluate 1-square mile within the R26 atlas area to identify undersized water <br />mains via GIS software and recommend improvements to the potable water <br />distribution system for the mains less than 8-inches to meet current codes and <br />design standards. Ms. Ross was the Project Manager for this task. GIS was <br />utilized to identify the pipe characteristics such as aging pipelines, extensive <br />leaks/repairs, undersized pipes, and relocation of existing mains with limited <br />access in alleys or easements. Any existing mains less than 6 inches in residential <br />areas were recommended to be upsized to 8 inches, 12-inch diameters for <br />commercial, industrial, and high-density residential use and half-section lines, <br />and 16 inches for the mains along full-section line roads. A fire flow analysis was <br />also performed to ensure accurate sizing and fire hydrant spacing. Currently, <br />Ms. Ross and staff are working on the next phase of this project to design the <br />upsized water mains identified in the memo. <br />Atlas R26 (PCTS 16297) Design Project <br />Following the BODR, Miami-Dade approved the design for the water main <br />replacement for one-half of the square mile that was evaluated. Ms. Ross is the <br />Project Manager to design over 45,000 linear feet of water main in Atlas R26. <br />This project is currently in the 30% design phase and is utilizing the proposed <br />water main layout identified in the memorandum. The new design has been <br />coordinated with Miami-Dade Water and Sewer’s modeling department. All <br />6-inch mains are abandoned in place and replaced with a new 8-inch DIP wm <br />in the residential areas. In commercial, industrial, and high-density residential <br />areas, the mains are proposed to be replaced with 12-inch water mains. All <br />water meters in easements in the back of the property will be relocated to the <br />front and connected to the new mains, and any section line roads are upsized <br />to 16-inch wm. The undersized mains will also be upsized due to the fire flow <br />deficiency on certain streets to bring them up to code. Existing fire hydrants <br />will be reconnected to the new mains, and new hydrants will be added based on <br />spacing requirements and approved by the Miami-Dade County Fire Department. <br />In addition, the design also includes looping the mains where possible, including <br />blow-off valves or adding additional fire hydrants at the 13 dead-end connections. <br />MIAMI-DADE COUNTY WATER AND SEWER DEPARTMENT <br />Small Diameter Contract - Small Water Main Replacement <br />Program (R-26) <br />Miami-Dade County, FL <br />Client Reference <br />Rudy Ibarra, PE <br />Project Manager <br />Miami-Dade County Water <br />and Sewer Department <br />3575 South LeJeune Road, <br />Miami, FL 33146 <br />Office: 786.552.4400 | Cell: <br />305.281.8746 <br />Rudy.Ibarra@miamidade.gov <br />Role <br />Prime Consultant <br />Performance Period <br />2024 - Ongoing <br />Total Amount of Contract$1.85M <br />Services similar to <br />Sunny Isles <br />• Continuing Utility <br />Engineering Services <br />• GIS-Based Water System <br />Analysis <br />• Basis of Design Technical <br />Memoranda <br />• Existing Infrastructure & <br />Capacity Evaluation <br />• Fire-Flow Analysis <br />• Water Main Replacement <br />& Upsizing <br />• 45,000+ LF of Water Main <br />Design <br />• Meter Relocations <br />• Fire Hydrant Evaluation & <br />Design <br />• Water Main Looping & <br />Dead-End Improvements <br />• Blow-Off Valve Design <br />• Utility Easement & Access <br />Evaluation <br />• Regulatory & Agency <br />Coordination <br />• Permitting <br />• Construction Documents <br />• Cost Estimating <br />MQR #2 <br />Project # 4