PPL Montana Rainbow Redevelopment Project


PPL Montana Rainbow Redevelopment Project

Type: Natural Resources, FERC

Location: Great Falls, MT

Contact: wdsteigers@steigers.com


The aging power generation infrastructure at the Rainbow Hydroelectric Development, originally built in 1910, is located on the Missouri River near Great Falls. The $250 million Rainbow Redevelopment Project provided an enormous economic boost for the Great Falls region and was the largest private sector project, in terms of dollars, completed in Cascade County to date.


During the design, construction, and post-construction phases of the project, our client relied exclusively on Steigers Corporation’s staff to identify, execute, and manage project-wide regulatory compliance as required for our client as well as all contractors. Steigers Corporation consulted and coordinated with all participating federal, state, and local agencies to prepare, submit, and maintain permits on the behalf of our client and its contractors. The project included a significant Federal Energy Regulatory Commission (FERC) component, including preparation of numerous articles and FERC submittals. We developed a comprehensive environmental compliance inspection program for the construction management inspectors and completed independent quarterly environmental inspections for overall compliance.


As with any project, particularly multi-year projects, change during construction is inevitable. As design changes were made for the Rainbow Redevelopment Project, Steigers Corporation provided immediate compliance solutions. Steigers Corporation’s staff coordinated with contractors, engineers, the owner, and agencies to prepare and submit necessary applications and supporting documents for regulatory compliance.