The US Forest Service recently reported the success of a five-year project started in 2011 to reclaim ponds in the Northeastern US for brook trout. The organization, in conjunction with Maine's Department of Inland Fisheries, established the "5-in-5" program which aimed to reclaim five ponds in five years for brook trout. The ponds were found in and around White Mountain National Forest.

 
The US Forest Service has been partnering with local wildlife managers who "have been adding large logs to streams to create deeper pools and meandering channels, giving fish a fighting chance at surviving floods and droughts. Biologists and engineers have been working with partners to reconstruct and replace undersized culverts that block fish from migrating upstream. Taken together, these efforts create ideal native brook trout habitat."

However, these measures are often insufficient to ensure healthy populations of brook trout, so the organization's program was center around reclamation efforts. James Pellerin, fisheries biologist for Maine's Department of Inland Fisheries and Wildlife, explained, "Reclamation ensures all that potential productivity is going into brook trout and not other more competitive invasive species."

11 years after the onset of the "5-in-5" program, The US Forest Service reported that brook trout are now in abundance in these reclaimed ponds.

https://www.fs.usda.gov/features/partnership-restores-brook-trout-five-ponds-within-five-years