Effects Of Pipe Bursting On Nearby Utilities: Prediction, Prevention And Management

5th In A Series From The IPBA
By Matt Timberlake, President, Ted Berry Trenchless Technologies LLC, International Pipe Bursting Association Marketing Committee | September 2011, Vol. 66 No. 9

The use of Quality Level A subsurface utility engineering data could potentially predict and prevent all utility strikes caused by pipe bursting. However, that may not always be practical or necessary on all projects. A Quality Level C would be the lowest acceptable level for most pipe bursting projects, but would not be sufficient for crossing “critical” utilities that would cause personal injury or property damage from a rupture. Most utilities being crossed by a traditional pipe burst would be in the order of sanitary sewer laterals, water services, storm drains, intersecting water and or gas mains, sewer force mains or electrical ducts. Most can be accurately estimated based on Level C field data such as opening sewer or storm manholes and shooting invert grades, opening and measuring gate valves or curb stops, or other “simple” field verification methods.

Utility damage prevention is a risk associated with all construction and pipe bursting is no exception. However, through a properly planned, designed and executed project, there have been millions of feet of pipe replaced utilizing pipe bursting technologies throughout the world both safely and without unreasonable risk to those involved or the general public. Experience establishes that more utilities have been damaged installing the insertion pits and receiving pits with excavation equipment than with any amount of pipe bursting.

Do your homework, select a quality project team and let’s go pipe bursting!

Coming in October: Pre-chlorinated pipe bursting for potable water mains.

IPBA (NASSCO), (410) 486-3500, www.nassco.org

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