Case Studies

Trinity Meyer has a long history of innovation and expertise. Our solutions are a testimony to our ongoing commitment to provide reliable structures that are reliable, easy to install and cost-effective. These case studies demonstrate our ability to deliver quality solutions across a wide variety of constraints and conditions.


Steel Monopoles Replace Deteriorating H-Frame Wood Poles in Historic Estuary

In the Ebey Slough basin of Snohomish County, Washington, nearly two miles of high-voltage transmission lines traversed decades-old, deteriorating wood poles, which jeopardized the safety and reliability of an essential part of the Puget Sound Energy (PSE) power grid. Discover how Trinity Meyer designed a solution that provided long-term performance, while overcoming the various environmental and aesthetic hurdles. Read more.


250 Unique Steel Structure Designs Help Empower Massive Transmission Project

An enormous undertaking, Northeast Utilities’ 345-kV Middletown-Norwalk Bulk Power Project required construction of 150 miles of both overhead and underground transmissions lines. Read more.


Steel Monopoles Leave Light Footprint on the Environment

The need for a new line was clear. A large portion of northwestern Wisconsin’s transmission grid was built to meet the electricity needs of the 1940s and 1950s. By the late 1990s, the state’s demand for electricity was growing 2% - 3% each year. The existing line could not reliably accommodate this kind of growth and threatened, under certain load conditions, to cause blackouts across large, populated areas. The solution: Improve the reliability of the grid by building a new 345kV line, 220 miles long from Wausau, Wisconsin to Duluth, Minnesota – the area’s most challenging infrastructure project in decades. Read more.