Be Safe! Always assume that obstructions involve a cross bore.
Where do cross bores occur?
When natural gas lines are installed in an urban area, trenchless technology (directional boring) is often used to dig horizontally underground. This helps alleviate damage to driveways, sidewalks, and landscaping.
When is it a problem?
At the time of the boring, a utility company may not be aware it has bored another utility company’s line. It becomes a problem when the sewer line develops blockage problems and needs to be cleaned.
What happens during the sewer line repair?
While cutting thru a sewer line block, a plumber can unknowingly strike the gas line. As a result, leaking natural gas can enter the sewer system.
Why is this important?
When natural gas enters a sewer system, it can create a safety risk.