Project Included

Y138 Line Structure Replacements—New Hampshire

April–July 2020

Riggs Distler performed environmental matting and civil services in support of a project to upgrade aging and damaged support structures along electric distribution lines in the White Mountains of northern New Hampshire. Riggs Distler’s staff built access roads and stabilized the extensive project work area. Our work involved:

  • Installation of 1,300 mats in wetland areas and stream crossings.  
  • Cut and build access roads using over 10,000 cubic yards of material.

Challenges Overcome

This project was in a very sensitive area near Mt. Washington that is busy with tourists and visitors year-round. In order to minimally disturb residents and travelers in the area, Riggs Distler carefully coordinated all work with the client, ensuring work was performed during low-traffic periods and all pre-established outage windows. No work was performed on weekends, and in some cases the constraints were quite limiting. Safety was also a chief concern, and our teams worked very cautiously to ensure the safety of passersby and field staff.

Results Delivered

Thanks to close coordination between Riggs Distler’s management, the client, and the various other contractors working on the project, the project was completed on schedule and without disruption to the local community.

Project Included

Case Studies

15-Mile 69kV Transmission Line Rebuild—Southern New Jersey
2021
Riggs Distler was contracted to modernize and upgrade the performance of a major electric transmission line connecting two substations in southern...
COC for Overhead Transmission Projects—DE, PA, NJ, MD, IL
January 2021–December 2025
Riggs Distler is the Contractor of Choice for all installation, maintenance, and repair work performed on our client’s electrical transmission...
115kV Transmission Line Rebuild—New Hampshire
May–June 2020
Riggs Distler was contracted to upgrade aging tower infrastructure along an important 115kV electrical transmission line in New Hampshire. In order...
Great Egg Harbor Crossing Rebuild Project—New Jersey
September–December 2020
Riggs Distler was contracted to assemble and install eight electric transmission towers to provide improved electrical service to customers in...
Y138 Line Structure Replacements—New Hampshire
April–July 2020
Riggs Distler performed environmental matting and civil services in support of a project to upgrade aging and damaged support structures along...
Transmission Line Refurbishment Project Phase I — Massachusetts
Sept 2019–June 2020
Riggs Distler was contracted by a major power provider to provide environmental matting services in support of a 315 & 303/327/3520kV...
Access Matting for Structure Replacement – New Hampshire
April–June 2020
Riggs Distler’s environmental construction and matting teams provided civil services to improve access to an aging 115kV transmission line in New...
Environmental Services for Structure Replacement — New Hampshire
January–June 2020
Riggs Distler’s environmental matting team was contracted to build roads and provide extensive matting in support of a project to upgrade an aging...
Aquidneck Island Reliability Project — Rhode Island
April 2018–April 2019
Riggs Distler was contracted to provide Environmental Matting and Environmental Controls for the 61/62 Aquidneck Island Reliability Project, which...
J10 Soil Boring Access Project — Western Massachusetts
April–June 2018
Riggs Distler’s Environmental Matting Division was contracted to develop an access road across a difficult and inundated landscape to allow a test...