In 2004, the City established a formal program to address our aging water distribution system, which consists of about 1,500 miles of water lines within Greensboro city limits. The goal is to tackle one percent of our system each year.
About one-third of the City's water distribution system is 50 years old or older and those pipes are cast iron. The average pipe age is about 40. Over time, cast iron becomes brittle and is susceptible to a buildup of iron deposits. This can cause your water to be discolored and have an unusual taste, and it can reduce water flow.
Water Resources Department staff consider many factors when determining the priority of water line rehabilitation, such as:
- Age and material of line
- Fire hydrant flow capacity
- Existing water quality issues
- Water main break history
- Road resurfacing priorities.
After identifying the next section of the system that needs attention, staff determine which rehab method is best for that particular location. The evaluation process also includes looking at future work and whether additional valves, hydrants, and stub outs for future projects are needed.
Bursting uses hydraulic force to install a new water main underground. The old main is used as a conduit for the new main to follow. A hydraulic pulling system, coupled with cutting and expanding attachments, scores the old main, then expands and pushes the old pipes out of the way to allow a new pipe to be pulled into its place.
When this method is used, you may hear the beepers of construction equipment when backing up and occasional loud pops coming from the work area.
Epoxy lining involves scraping the inside of a water main to remove the build-up of iron deposits that naturally occur inside unlined water mains. The main is then spray-coated with an epoxy lining to prevent further corrosion. This procedure restores water flow within the water main back to original conditions.
Door hangers are hung two weeks before work begins on each water line and again 48 hours prior to the start of work.
Unless it’s an emergency, door hangers will be placed at least 24 hours in advance any time service is interrupted for an extended period of time. That notice will also include an estimate of how long the interruption may last.
If at anytime, your water and/or sewer service is off for more than 30 minutes and you have not been notified about any disruption by a contractor or City employee, please call the City Water Dispatcher at 336-373-2033.
If you are placed on temporary water, there is no charge for water use until your regular service is returned.
Your water service will be disrupted for less than 10 minutes when a temporary line is connected and disconnected.
If your water has been off for more than 30 minutes and you have not been notified about any disruption by a contractor or City employee, then please call the City Water Dispatcher at 336-373-2033.
If below freezing temperatures are predicted, please leave a faucet continuously running water the width of a pencil to prevent the temporary water line from freezing.
Watch your step on streets being rehabbed to avoid trip hazards and do not park close to a curb in case a pipe is in the gutter.
Remind your family, friends and business customers to be careful and patient driving in the area and to drive slowly.
City news releases announcing rehab-related traffic pattern changes and detours are issued to the media at least 24 hours in advance. These news alerts are also posted on this page.
To receive automatic e-mail notifications about when a rehab job closes an intersection, road or lane visit this Web page. Sign up in the News section for “Road Closings/Traffic Alerts.”