Rumbrook-Knollwood Interconnection Transmission Main Project

Dear Resident,

The Town of Greenburgh Consolidated Water District will soon begin construction on the Rumbrook-Knollwood Interconnection Transmission Main project.  This major Town water infrastructure project will involve the installation of over one mile of 30-inch diameter water main that will connect the Rumbrook Pump Station to the Knollwood Pump Station in the Town of Greenburgh.  Connecting these two pump stations will build redundancy into the water distribution system and allow for one of the stations to be taken offline to facilitate repairs, should the need arise.

The new transmission main will begin at the Rumbrook Pump Station, located in East Rumbrook Park, and proceed north, below grade, before crossing over the Catskill Aqueduct and then under the Sprain Brook Parkway.   After crossing under the parkway, the path of construction will proceed north on Pomander Drive, south on Canterbury Road, north on Hartsdale Road, east on Old Knollwood Road, and southeast on Stadium Road, ending at the connection with the Knollwood Pump Station.

Construction is expected to begin in Spring 2020 and will last approximately 8 to 10 months.  Normal work hours are Monday to Friday 7:00AM to 3:30PM.  Construction will take place mostly within the roadway or shoulder area.  The construction will require periodic closures of the roadway at the worksite, and will result in detours around the worksite during the day.  We ask for your patience and understanding during this time.  As always, please slow down and use caution when traveling through the construction areas. Project updates will be provided on this page.

If you have any questions regarding this project, please contact: Carol Murray, Junior Civil Engineer, at (914) 989-1584 or

A map showing the approximate path of construction can be found here.