Sewer Meets Natural Gas Cross Bores

Be Safe! Always assume that obstructions involve a cross bore.

A cross bore is defined as the intersection of an existing underground utility or underground structure by a second utility installed using trenchless technology. This results in an intersection of the utilities, compromising the integrity of either or both utility or underground structure.

In rare cases, our gas pipeline may cross through a sewer pipe. If a plumber unknowingly strikes a gas line while cutting through a sewer blockage, natural gas could enter the sewer system, creating a dangerous situation. For this reason, it is extremely important to call 811 before you begin any digging project to have all utility lines clearly marked.

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Dealing with Sanitary Sewer Back-ups


If you have a back-up in your sanitary sewer system, contact the Nebraska City Utilities by calling 873-3353.  This number is staffed 24 hours per day for emergencies.

A crew will respond to check the City’s main sewer lines.  If a line is found blocked, the crew will purge the line to get it open.  If your back-up does not recede after the City line is found to be open or after it is purged, you should call a professional plumber to have your home’s service line cleared.  The City cannot recommend plumbers for this service, but many can be found in the local telephone directory yellow pages.

After City crews have inspected the main sewer lines, we will inform the customer reporting the back-up as to our findings.  Please be sure to leave an accurate address and telephone number when reporting a back up.

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