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FAQs - Call Before You Dig U.S.

Don't gamble with your safety —if you're a professional excavator or a homeowner, smart digging always requires a call to 811. Knowing where underground utility lines are buried before you dig will help protect you from injury and prevent damages to utilities, service disruptions and potential fines and repair costs. Whether you're planting a tree or shrub, or installing a deck or pool, every job requires a call — even if you've called before for a similar project. The depth of utility lines varies, and there may be multiple utility lines in one common area. Marked lines show you the approximate location of underground lines and help prevent undesired consequences such as injury, service disruptions to an entire neighborhood, or costly fines and repair costs.

Smart digging always means calling 811 before each job. Whether you're a do-it-yourselfer planning a weekend project or a professional excavator contracted for a home improvement job, one phone call to 811 will get your underground utility lines marked for free.

No, 811 will not replace your local one call number. The One Call process will remain the same and continue to notify your local affected utility companies, who will continue to mark your underground lines for free. With more than 62 local one call numbers across the country, 811 eliminates the confusion of multiple "Call Before You Dig" numbers by providing one national number you can call to get your lines marked.

Yes. Each color indicates a universal color to what is buried below ground.

  • Red –Electric
  • Orange –Communications, Telephone/CATV
  • Blue –Potable Water
  • Green –Sewer/Drainage
  • Yellow –Gas/Petroleum Pipe Line
  • Purple –Reclaimed Water
  • White –Premark site of intended excavation

State laws vary from state to state. Please call 811 directly and they will advise you of the duration the marks will be good for.

No. An 811 call is to be made only if the caller intends to dig. Professional locators will then mark the approximate location of the buried facilities with paint or flags.

Enbridge and Spectra Energy Complete Merger

We are now Enbridge!

On February 27, 2017, Enbridge Inc. and Spectra Energy Corp closed their merger transaction. This transaction has created a global energy infrastructure leader—with an enterprise value of approximately US$126 billion (C$166 billion)—that brings together the best liquids and natural gas franchises in North America.

The combined company is known as Enbridge Inc. You’re currently viewing Spectra Energy’s legacy website, where you’ll find information on the former Spectra Energy Corp.

For current and accurate information on Enbridge, which now includes Spectra Energy Corp, please visit enbridge.com.

Please note that Enbridge Inc. does not assume responsibility for the content of this website, as information may be out of date or no longer accurate as of February 27, 2017.