New Rivanna Pump Station

New Rivanna Pump Station Tunnel

New Rivanna Pump Station Tunnel

Increasing Our Capacity to Handle Wastewater

Few of us realize that most of the wastewater from our northern and eastern urban area (including Crozet) flows through this system to our Moores Creek campus. This wastewater infrastructure requires pipelines for transmission. The New Rivanna Pump Station project began in 2010 to provide increased capacity for wastewater in a much-needed area.  This project required a sophisticated tunnel boring machine (affectionately named Ms. Chelsea) to excavate over 6,000 cubic feet of rock so that crews could install a 5 feet diameter pipe.

This new pipe will increase the capacity from 17 to 37 thousand gallons per minute (or 53 million gallons per day) of wastewater coming from the northern and eastern portion of the City and the County.  With this upgrade in the wastewater system, sewer will no longer be at risk of overflowing into the Rivanna River during big storm events. Additional features of the New Rivanna Pump Station include a self-cleaning wet well design, influent channel grinders, six pumps, odor control, and an emergency generator.

This project is due for completion in 2017. To sign up for periodic updates click here

Project Update Meeting for Woolen Mills Neighborhood

Our contractors Adams Robinson (ARCO) and Rivanna Water and Sewer Authority hosted an update session on the project for the Woolen Mills community on Tuesday, December 6, 2016. For a brief summary of the meeting click here: Project Update Meeting. (Note: bypass pumping dates are now incorrect. It will be April/May 2017)

Adams Robinson (ARCO) has made extensive progress since the last community meeting in November 2014!  The new pump station structure and tunnel construction are complete.  Startup and testing of the new pump station and electrical gear at Moores Creek will be conducted over the next few months with official start up anticipated late April/early May 2017.

As part of the preparation work to start up the new pump station, ARCO mobilized back into the existing pump station (adjacent to the Riverview Park entrance) in January 2017 and made the final structural modifications which will allow the sewer interceptor flow to be connected to the new tunnel and conveyed to the new pump station.  Following successful startup of the new pump station, the existing pump station will be decommissioned and demolished in addition to the existing 36” force main.

Rivanna Pump Station Construction

Rivanna Pump Station Construction

Tunnel Complete!

Tunnel Complete!   (Photo: Michelle Simpson)

Watch the tunnel breakthrough here! https://www.youtube.com/watch?v=A2XUpdCOtwA

front-of-pump-station-august-2016

Front of the New Rivanna Pump Station (August 2016)

Senior Principal Engineer Benjamin Alter, Hazen & Sawyer, and Michelle Simpson, RWSA Senior Civil Engineer at floor level. (Sept 2016)

Senior Principal Engineer Benjamin Alter, Hazen & Sawyer, and Michelle Simpson, RWSA Senior Civil Engineer at floor level. (Sept 2016)

 

Rivanna Pump Station Aerial Map

Rivanna Pump Station Aerial Map

Project photo log

Learn more about this project at our History of the Rivanna Pump Station Project page.

 

Print Friendly, PDF & Email