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Crossbore

If your sewer is blocked think crossbore!

Crossbore

HOW CROSS BORES HAPPEN

For many years, utilities nationwide have
installed gas pipelines by boring underground,
rather than digging trenches, to avoid tearing
up paving and landscaping.
Existing underground pipes and wires are
marked, when possible, before work begins. But
sewer pipes often go unnoticed because they
are regularly unmapped and are undetectable
using above-ground locating devices.
Crossbores are a rare side effect that can happen
when the machine used to install gas pipelines
inadvertently bores through sewer lines.

More information from the Gas Technology Institute regarding potential safety hazards associated with trenchless technology and cross bores can be found at the following videos:

https://www.youtube.com/watch?v=c7WkSnxertY

https://www.youtube.com/watch?v=n_UImfsvV4w

Play It Safe!

Never use a sewer clearing machine to clear
an interior blockage until the obstruction has
been identified.

IF A CROSS BORE IS DISCOVERED:

  • Stop All Work
  • Contact the utility operator involved
  • If you suspect a natural gas leak by smelling or hearing gas escaping
  1. Leave and instruct others to leave the area
  2. Call 911
  3. Contact the gas company for the area
  4. Do not operate any equipment
  5. Eliminate any source of ignition
  6. Do not operate any pipeline equipment or
    facility
  7. Proceed with your work when the area is
    safe