E-J Electric Outsmarts Underground Risk With GlideLine

The Project

The Champlain Hudson Power Express is a massive 339-mile high-voltage transmission project designed to deliver clean hydroelectric power into New York City. E-J Electric's work focused on critical underground cable pulls near Astoria, Queens, where an already crowded network of buried utilities, constrained urban corridors, and complex underground infrastructure made the final stretch especially demanding. On a project of this scale, every pull mattered. And every setback had the potential to create another costly delay. These weren't ordinary cable pulls. Neither were the consequences of a failure.

The Last Mile of a Massive Undertaking

The Champlain Hudson Power Express is a massive 339-mile high-voltage transmission project designed to deliver clean hydroelectric power into New York City. E-J Electric's work focused on critical underground cable pulls near Astoria, Queens, where an already crowded network of buried utilities, constrained urban corridors, and complex underground infrastructure made the final stretch especially demanding. On a project of this scale, every pull mattered. And every setback had the potential to create another costly delay.

The Challenge & Solution

The Challenge: One More Variable
E-J Didn't Need

An underground transmission pull already has enough moving pieces.

Crews. Equipment. Permitting. Weather. Traffic. Street access. Existing infrastructure. And thousands of feet of conduit you can't see inside.

E-J had already seen what happened when the pulling rope became another variable.

A smaller-diameter conventional 12-strand, single-braid HMPE rope previously used on the project failed after seven underground pulls. Unlike a rope with a protective outer jacket, its load-bearing fibers were exposed to abrasion. Repeated wear weakened sections of the rope until they could no longer withstand the tension required to complete a continuous pull. The rope ultimately broke roughly 1,000 feet into a 2,000-foot pull in Queens.

There was no simple reset button.

The cable couldn't simply be pulled back out and the pull restarted. Addressing a failure like this could mean locating the break, excavating in the middle of a city block, securing expedited permits and navigating more than a century of existing underground infrastructure.

And replacing the rope wasn't necessarily quick either. A new industrial reel could require an estimated four to six weeks to manufacture. The alternatives were an emergency splice, waiting for a replacement, or tying up additional capital in backup reels.

For E-J, the problem wasn't simply finding a stronger rope.

It was removing one unpredictable variable from an already complicated job.

The Solution: A Rope Engineered Around the Underground

GlideLine was developed to address a specific need in electric utility work: maintaining strength and durability over repeated pulls in harsh underground environments.

For E-J, Yale supplied a 1-1/8-inch, 4,000-foot GlideLine with a catalog minimum breaking strength of 88,020 pounds.

Its double-braid HMPE construction combines a high-strength core with a tightly braided protective jacket. That construction is designed to withstand repeated underground use while reducing the sawing and cutting action against conduit that can occur with other rope constructions.

That proved particularly important in the directional FRE conduit on the E-J project, where the customer reported GlideLine provided superior wear resistance.

GlideLine also incorporated REDLIGHT™ Technology, a highly visible red section that alerts crews as they approach the end of the rope. On a complex underground pull, that advance warning helps crews avoid accidentally overpulling the rope, potentially damaging equipment or disrupting the operation. It was a feature E-J valued enough to suggest making the red section even longer for future transmission applications.

Then it was time to see how it performed.