NW Hillsborough Wastewater Consolidation Program

Important Message

During this construction, Hillsborough County Public Utilities would like to remind all residents that there is no trespassing on County-owned construction property. The County has recently posted "no trespassing" signs on its easement and property south and west of Fawn Ridge, and north of Westchase. This property, near the Northwest Potable Water Treatment Plant and Northwest Water Reclamation Facility, is being expanded.

Safety is a priority for any construction project. Residents can do their part to ensure safety by avoiding County-owned property and discouraging children from approaching this active construction zone. Trespassing in a construction area is a felony; Hillsborough County Sheriff's Office will patrol the area to ensure safety of residents.

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Description

The Northwest Hillsborough Wastewater Consolidation Program was approved by the Hillsborough County Board of County Commissioners in 2014 as part of its Capital Improvement Program. The program is currently under construction to retire two aging wastewater plants and consolidate treatment at the Northwest Regional Water Reclamation Facility. Overall, the program will improve wastewater service in Northwest Hillsborough County, improve reliability and save money for all County customers. There are three projects to the Northwest Hillsborough Wastewater Consolidation Program:

  • Dale Mabry Wastewater Treatment Plant Diversion (complete)
  • River Oaks Wastewater Treatment Plant Diversion (under construction)
  • Northwest Regional Water Reclamation Facility Expansion (under construction)

The goals of the program are to improve treatment efficiency, reduce power use and minimize future rate impacts.

  • Dale Mabry Wastewater Treatment Plant Diversion - The first project component involved the Dale Mabry Wastewater Treatment Plant, and was substantially completed in January 2018. A new pump station and six miles of 24-inch and 36-inch diameter transmission main were built to transfer wastewater flows from this facility to the Northwest Regional Water Reclamation Facility. Approximately six miles of reclaimed water pipeline was also installed to return reclaimed water from the Northwest facility back to the Dale Mabry site. The Dale Mabry plant, which had served the area for more than 40 years, was retired and demolished. In future months, much of the site will be repurposed as a public park.
  • River Oaks Wastewater Treatment Plant Diversion - The River Oaks Wastewater Treatment Plant is also at the end of its useful life. In order to retire this facility, the Northwest Regional Water Reclamation Facility must be expanded. This project involves installing new wastewater force mains, new reclaimed water force mains and a new pump station. The River Oaks plant will be retired once the Northwest plant has been expanded and the new equipment has been accepted.
  • Northwest Regional Water Reclamation Facility Expansion - Expanding the Northwest Regional Water Reclamation Facility will serve the community's wastewater treatment needs for decades. The Northwest facility will be expanded from 10 million gallons per day (mgd) to 30 mgd. The plant is surrounded by County-owned land and has room for expansion while leaving a buffer between the nearest neighborhoods. Hillsborough County is committed to being the best neighbor possible. With the plant expansion, the County has made significant investments in technologies to efficiently control odor and noise, so the northwest Hillsborough community's quality of life will be unaffected by plant operations.

What to Expect

  • The project team will work closely with local and state transportation authorities to develop traffic plans to keep residents moving safely
  • Detours and lane closures will be clearly marked and flagmen will help direct traffic
  • Emergency services will be notified by Hillsborough County in advance of detours and lane closures
  • Residents near the River Oaks plant can expect to hear construction noise and may experience some construction traffic during demolition
  • For those living near the Northwest Regional Water Reclamation Facility, you may experience a short-term increase in construction traffic

Cost & Funding

  • The Dale Mabry Diversion cost approximately $38 million and was paid for with funds that the County currently has on hand
  • The second phase of the project, which includes expansion of the Northwest facility, new pipelines and retiring the River Oaks facility, is estimated to cost approximately $236 million. These projects will be funded through the approved Capital Improvement Program.

Timeline

Dale Mabry Diversion

  • Construction: 2015-2017
  • Demolition: 2018

Northwest Regional Water Reclamation Facility Expansion

  • Complete siting, design and permitting by end of 2017
  • Commence construction in early 2018
  • Complete construction by December 2019

River Oaks Diversion

  • Complete siting, design and permitting by end of 2017
  • Commence construction in early 2018
  • Complete construction by December 2019 after the Northwest Regional Water Reclamation Facility expansion is complete.

Three initial public meetings were held in April 2014 at Carrollwood Cultural Center, Alonso High School and Sickles High School. Information presented at those, and subsequent meetings, is provided below. Residents will be notified as additional meetings are scheduled.

Contact

  • Citizen Engagement - (813) 272-5275
  • Northwest Wastewater Consolidation Program Manager - Bill Harrington 635-5439
  • Northwest Plant Expansion Project Manager - Kelly Kiner, (813) 335-9541
  • River Oaks Diversion Project Manager -- Brad Warholak, (813) 853-1048
  • After Hours Emergencies - (813) 744-5600
  • Subscribe to the Project Update Notification Email List

Additional Information

Dale Mabry

River Oaks

Northwest Regional Water Reclamation Facility Expansion