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2011 Collection System Structural Defect Repair project completed

Date added: 11-Aug-2015 09:26 AM

2011 Collection System Structural Defect Repair project completedThe 2011 Collection System Structural Defect Repair project involved repair of wastewater infrastructure across an expansive area of the Whites Creek and Richland Creek drainage basins in northwest and west Nashville. The project is the largest so far from a geographic standpoint, spreading across 10 Metro Council districts.

Work included repair to cracked and broken system pipes that had begun to leak and diminish system capacity. The program’s contractors used closed circuit television cameras, extended by cables into the pipe system, to identify deterioration and catalog more than 25 major repairs.
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Driftwood Equalization Facility modifications completed, doubling facility's capacity

Date added: 11-Aug-2015 09:31 AM

Driftwood Equalization Facility modifications completed, doubling facility's capacityThe Driftwood Equalization Facility, located on the eastern edge of downtown Nashville, off of Hermitage Avenue on Visco Drive, has been modified to store an additional 3.2 million gallons of combined sewage during peak rain events. This project is a means of reducing or eliminating wet weather overflows during major rain events.

By raising the concrete walls at Driftwood’s open storage facility and installing six new weir gates, CWN has doubled water detention capacity to almost 7 million gallons.
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Lakewood Infrastructure Improvement Project Open House held

Date added: 11-Aug-2015 09:32 AM

Lakewood Infrastructure Improvement Project Open House heldConstruction will begin in January 2014 to renew water and wastewater infrastructure in the Lakewood community. In advance of that construction, a community open house was held to provide community members information about the project, which is part of a citywide initiative to meet the U.S. Clean Water Act and replace aged infrastructure to benefit future generations.

The project will modernize Lakewood’s water, wastewater and stormwater infrastructure, the results of which will include improving water flow, reducing standing water during big rain events, and addressing sewer overflows.
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Clean Water Nashville Program supports the Cumberland River Compact by entering the Dragon Boat Race!

Date added: 11-Aug-2015 09:28 AM

Clean Water Nashville Program supports the Cumberland River Compact by entering the Dragon Boat Race!Each year the Cumberland River compact hosts the Cumberland River Dragon boat festival, which includes a daylong series of Dragon boat races along the Cumberland River at Riverfront Park. This year the Clean Water Nashville Program supported the festival, including entering a team in the Dragon Boat race competition held on September 7.
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Conveyance Improvements Underway

The Brick Church Pike Pipe Improvements project illustrates the sometimes demanding challenges that are encountered as Clean Water Nashville Overflow Abatement Program (CWNOAP) renews and enlarges Davidson County’s sewer system.

The purpose of the Brick Church Pike Pipe Improvements project, located in Metro Council District 3, is to increase capacity in the sewer system and therefore reduce surcharging and sanitary sewer overflows caused by excessive rainwater entering the sewer system. Sanitary sewer overflows, or SSOs, are discharges of untreated sewage to the environment including public or private property.

Comprehensive, coordinated planning has been conducted to minimize construction impacts to local residents, businesses, and the environment while maintaining a safe work environment for all involved. Clean Water Nashville follows all local, state, and federal environmental policies in order to minimize disturbances to natural waterways, to conduct maintenance of riparian zones, and to protect natural habitat.

The construction work planned for Brick Church Pike Pipe Improvements includes:

  • Excavation, primarily through trenching, for installation of 9,400 linear feet of large diameter (24-inch to 30-inch diameter) gravity sewer pipe, 500 linear feet of small diameter sewer pipe, and associated manholes. This excavation and installation work will primarily occur in grassy areas outside of roadways.

  • Trenchless crossings of Briley Parkway, Brick Church Pike, and the North Fork of Ewing Creek with excavated bore pits on both sides of the crossing

  • Sewer rehabilitation, where needed, using slip lining methods

  • Careful work in and around the North Fork of Ewing Creek to install new sewer pipe while following applicable environmental policies for protection of creeks, streams, and preservation buffers

In addition to the Brick Church Pike Pipe Improvements project, two additional, interconnected projects have been identified by Clean Water Nashville in order to address sewer system limitations in the North Fork of Ewing Creek-area. These projects are the following:

  • Westchester Drive Rehabilitation: This neighboring project, completed in 2015, involved rehabilitating approximately 3,850 linear feet of 10- and 18-inch sewer pipe along and crossing the North Fork of Ewing Creek, a tributary to Whites Creek. The rehabilitation work is expected to renew the system infrastructure and address leaky pipes in the existing system. The Westchester Rehabilitation project area is immediately upstream of the Brick Church Pike Pipe Improvements project.

  • Ewing Creek/Brick Church Equalization Facility: During large rainfall events, the excess flow conveyed through the Brick Church Pike Pipe Improvements project will be temporarily stored in the Ewing Creek / Brick Church Equalization Facility. When constructed, that facility will consist of a 10.6 million gallon storage tank and an 18 million gallons per day wet weather pumping station. The new facility in conjunction with other projects will provide the necessary capacity to address sanitary sewer overflows in the area. The project is scheduled to start construction in 2017.