Cleanwater Nashville

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Additional updates

Broadway, Van Buren overflows eliminated

Date added: 11-Aug-2015 09:27 AM

Broadway, Van Buren overflows eliminatedMetro Nashville is making significant progress toward improving Cumberland River water quality, eliminating two downtown combined sewer overflow (CSO) points. Closing the Broadway and Van Buren CSO’s reduces the number of Davidson County overflow points by 25 percent and reduces the amount of contaminated stormwater and wastewater flowing directly into the Cumberland River.
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Clean Water Nashville OAP begins project work

Date added: 23-Feb-2017 02:28 PM

Clean Water Nashville OAP begins project workThe Clean Water Nashville Overflow Abatement Program initiated construction on the following major projects in the second quarter of 2012:

  • Expansion of storage capacity at the MWS Driftwood CSO Equalization Facility on Driftwood Street
  • Expansion and other improvements to the Dodson Chapel Pumping Station and Equalization Facility

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Music City Center features green roof

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

Music City Center features green roofThe recently completed Music City Center is on track to be certified Silver Level LEED – Leadership in Energy and Environmental Design – by the U.S. Green Building Council.

One of the elements that will be considered during the certification process is the building’s green roof, designed to reduce the convention center’s overall energy usage.
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Washington CSO Control Facility goes online

Date added: 11-Aug-2015 09:35 AM

Washington CSO Control Facility goes onlineA major combined sewer facility providing optimization for wet weather storage, screening and control of floatables and solids went online in April of this year. In addition to providing treatment, the facility dramatically reduces the number of overflows at the Washington outfall, and reduces the volume of overflows by approximately 90 percent annually.

Constructed at a cost of approximately $17 million, it was operationally complete in time to meet the Consent Decree milestone.
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2011 Collection System Structural Defect Repair project completed

The 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.


Construction crews used two primary methods to make repairs to underground pipes. One, known as cured in place pipe, involved inserting a flexible resin saturated liner into a manhole and along the length of the pipe. The liner forms to the circular shape of the pipe, and then workers introduce steam or hot water that hardens the epoxy resin and forms a new plastic liner within the original host pipe for a secure, permanent repair. The second method involved excavating six- to- eight-foot sections of broken pipe for installation of replacement pipe that is coupled into the existing system.

All roadway, public easements and residential properties that were disturbed for repairs were promptly returned to pre-existing condition.