Brucejack Mine

New York State Electric & Gas

Marcy South Reconductoring 345kV Transmission Line

STR 88-89 NEW DRUM LOADED

THE PROJECT

The Marcy South transmission line project was a 22 mile section of reconductoring from Roscoe to Delancey, New York State, approximately 107 miles North West of New York City. The project consisted of replacing the old ACSR conductor with new ACCR conductor through 160 wooden pole structures.

  • Additionally, Rokstad Power undertook modifications on numerous poles, including replacing cross arms, repairing damaged poles, as well as replacing a number of full structures. Work was planned to be completed under outage conditions, although a number of cross arm replacements were completed under live line conditions. Change orders were issued for additional 50+ cross arm replacements.
  • Helicopters were utilized for numerous tasks, including flying in and setting new poles, removing old poles and cross arms and flying in travelers to all structures.

Unique Challenges

  • Pulling 3M ACCR (Aluminium Conductor Composite Reinforced) for the first tme (as a company), which required training from 3M, as well as the utilization of specific equipment and methodologies.
  • Access restrictions in the form of working on the Department of Environmental Protection (DEP) in New York state, whom manage and maintain the reservoir and surrounding land, which feeds into New York City. All employees must obtain a pass / permit to work on the land, with strict governance ruling changes to the landscape (ground movement, excavation, vegetation clearance etc.)
  • Weather conditions have varied from 86F to -22F, with substantial snowfall and ice storms.

LOCATION: New York
CLIENT: New York State Electric & Gas
COMPLETION DATE: May 2016
CATEGORY: Live Line

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