Aug 2016
Gas Distribution
Risk Assessment for Overbuilds
Aug 2016
Nov 2016
Northern Gas Networks
Iain Foster
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Network Innovation Allowance
Gas Distribution Networks
  1. Defining the definition of a building to be incorporated into NGN’s build over policy.
  2. Develop a formal risk assessment approach/decision tree for built over mains that would stand the test of an HSE challenge

A report detailing the analysis carried out and the final risk assessment/decision tree for overbuilds in various locations/situations.

The project will be deemed successful, if a risk based decision tree has been developed that results in

  • Safety improvements
  • Facilitates the development of innovative remediation techniques to mitigate the risk from close proximity to property like annulus sealing for example