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Mayor Barry visits sewer rehabilitation project

Date added: 25-Jul-2016 07:34 AM

Mayor Barry visits sewer rehabilitation projectMayor Megan Barry recently visited Clean Water Nashville’s 28th Avenue Rehabilitation – Area 1 project site to learn more about how Nashville’s aging sewer infrastructure is being renewed. As pictured, B.J. Kersteins of Insituform Technologies, Inc. (the construction contractor for this work) shows Mayor Barry a cured-in-place pipe liner. The pipe liner is inserted in the sewer to renew the system without excavating streets. Repairing sewers in this way extends the life of the system and addresses downstream overflows by reducing the amount of rainwater that infiltrates the system.
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Community Engagement

Date added: 01-Mar-2016 08:19 AM

Community EngagementClean Water Nashville Overflow Abatement Program (CWNOAP) team leaders shared plans for renewing wastewater system infrastructure in North Nashville with over 150 area residents gathered for a February 27 community meeting hosted by Metro Council District 3 representative Brenda Haywood.
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2015 highlights include completion of major projects

Date added: 24-Aug-2016 08:50 AM

2015 highlights include completion of major projectsDODSON CHAPEL PIPE IMPROVEMENTS PROJECT, located in Metro Council Districts 11 and 14, was completed in December 2015.

MILL CREEK/OPRYLAND EQUALIZATION FACILITY, PHASE II, increased storage capacity with the addition of a 19-million gallon, pre-stressed concrete wastewater storage tank adjacent to an existing 15-million gallon tank. The project was completed in April 2015.

COWAN RIVERSIDE REHABILITATION AREA 1—JONES AVENUE was conducted to renew aging infrastructure and to address downstream overflows by reducing the amount of rainfall that can enter the system through defects.
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Service lines connect citizens to public sewer system

Date added: 10-Feb-2016 02:23 PM

Service lines connect citizens to public sewer systemTHE CLEAN WATER NASHVILLE PROGRAM is constructing sewer rehabilitation projects to renew sewer infrastructure and reduce overflows that may lead to water quality impairments. These sewer rehabilitation projects are located throughout the county, including large projects currently under construction in Council Districts 2, 5, 7, 8 and 29.
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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.