Project Overview


New England

Substation Security Enhancements Project

Substation Fence Replacement

National Grid will be replacing fencing and making perimeter enhancements at existing substation and transmission switching facilities within their New England Territory (MA, RI, NH & VT).

Scope may vary by location, but typical work activity will include:

  • Perimeter fence survey
  • Site evaluations by engineers, forestry, environmental, real estate and construction personnel.
  • Existing fence will be removed and replaced in kind with a 1" chain link mesh fence that is 8 feet tall and 1 foot of barbed wire (3 strands) to meet current specification standards.
  • Replace substation gate entrance (may vary by location)

Construction is expected to begin at a National Grid substation in your area on or around Mid-May 2019. Typical contractor working hours will be 7am – 5pm, Monday through Saturday which includes daily set up and site clean-up on National Grid property. The expected length of time to complete this work will depend on the size of the substation.



Typical example of existing substation fencing (2” mesh, 6’ above ground, 1’ barbed wire)



Typical example new fencing standards once work is complete (1” mesh, 8’ above ground, 1’ barbed wire)