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Posted on: September 1, 2020

Notice: Old Greenwich Common Force Main-Sewer Inspections

Inspections to begin September 14, 2020; read on for further information:

The Town of Greenwich is under a Consent Decree from the United States Environmental Protection Agency and Connecticut Department of Energy and Environmental Protection to rehabilitate and replace legacy segments of the Old Greenwich Common Force Main (OGCFM).  The Department of Public Works Sewer Division has been working on completing several segments of the OGCFM for approximately 10-years now.  We are currently working on the design of the final section of the OGCFM that requires replacement.  This segment is over 3,800 feet long and is in the Old Greenwich section of Town.   

As we are working to finalize our design plans for the replacement of the force main, we will be performing closed circuit television inspections of the Town’s gravity sanitary sewer mains and portions of the sanitary sewer laterals that connect to these mains, as well as the Town’s storm drainage mains.  This inspection work will not only determine the structural integrity of these lines, but the inspection will include technology to determine the pipes’ geographic location both horizontally and vertically (below the ground). This information will be very useful to determine if there are any potential conflicts between the new force main pipe that is required to be installed and any of the existing gravity sanitary sewer mains and laterals, as well as the Town’s storm drainage pipes so that our design can include accommodations for any conflicts. 



The Sewer Division’s engineering consultant AECOM and their subconsultant National Water Main will be cleaning the gravity sanitary sewer and televising the condition of the sewer main and the sewer laterals (to the property line), as well as cleaning the storm drainage piping and televising the condition of the storm drain pipes. In addition, the sewer and drainage pipes will be located using a handheld meter. Temporary paint markings will be used during the process of locating the various pipes. This paint is necessary for us to identify locations and be able to properly map/survey the area.  The temporary paint will eventually wash off/wear off and is not permanent.



Streets where CCTV work will occur in the following locations:    Work is anticipated to begin on Oval Avenue in the vicinity of the Riverside Train Station parking lot and proceed to the east on Oval Avenue and Summit Road.  The work will end at the intersection of Summit Road, Arch Street, Riverside Avenue, and West End Avenue. 

Please see the attached map entitled Old Greenwich Common Force Main Segment 3 Project Limits CCTV Inspection for more detail.


Activities are scheduled to occur starting Monday, September 14, 2020 and run through Friday, October 9, 2020 weather permitting.   Normal hours of work will be between 7:00 a.m. and 5:00 p.m.  


You can continue to use water freely during the work and do not need to be home while we conduct our work in the roadways/Town right of ways. 

We will do our best to minimize the impact to residents and we appreciate your cooperation.  Please expect to see workers from our Consulting Engineer (AECOM), the subcontractor performing the CCTV inspection (National Water Main) and Town of Greenwich DPW Sewer Division staff in the area during the work.  There will be some temporary disruptions to traffic in the roads mentioned above as the work progresses each day.    

Any questions, please feel free to contact the Town of Greenwich DPW Information Line at 203-618-3001.  If no one is available, please leave a voice message and someone will return your call.    

Click Here for the Press Release            Click Here for a Map of the Project Limits                                                                                                                                    

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