Moss Mill to Motts Farm 69kV Rebuild

Project Scope of Work Included:

• Demolition and Removal of 445 Existing Wood Structures
• Installation of 292 New Steel Monopole and 74 Wood Structures
• Line Conducting
• Fiber Optics
• Overhead and Underground Distribution
• Helicopter Construction Techniques for 14 pole Structure/Foundation Installations
• Extensive Environmental Matting in Marshlands and Difficult Access Areas

Challenges and Results

Most of the transmission line runs parallel to the Garden State Parkway, and in some areas, it passes through normally inaccessible marshlands along the roadway. Due to the unstable ground condition in these areas, helicopter installations were required, attracting a great deal of attention from community members and travelers on the parkway. To ensure a safe environment for our crews and the public, we partnered with the New Jersey State Police to help secure motorist safety.

The transmission line involved several Parkway crossings that could not be performed over moving traffic. We prepared a wire-pulling plan and presented it to the New Jersey Turnpike Authority (NJTA), then coordinated traffic slowdowns with the NJTA and NJ State Police to ensure the line was installed safely.

The team also worked with a third-party testing firm to monitor vibrations caused by driving caisson foundations.

Weather also posed a challenge. The team encountered several high-wind days where the helicopters could not safely complete their work.

Despite the associated delays, we maintained the project schedule and completed all helicopter work within the planned timeline. Furthermore, the team accepted additional project scope at the customer’s request to replace two degraded structures on an adjacent line to ensure overall system reliability.