Cross Bores: How are They Being Addressed?

As defined by the Cross Bore Safety Association (CBSA), a cross bore is “…an intersection of an existing underground utility or underground structure by a second utility resulting in direct contact between the transactions of the utilities that compromises the integrity of either utility or underground structure.” During a 2010 WEFTEC technical session, the problems resulting from cross bores were presented. Based on the response from the participants, it was apparent that there is a deep interest from WEF members to learn more about the issue and steps taken to reduce risks associated with cross bore incidents. This paper is intended to provide an update of actions taken and activities underway since the 2010 presentation. The manuscript will include actions taken in various states to the time of submission. The update will address both public response (legislative and regulatory) and private response (system owners and operators).