Tucked alongside the Duschee Creek south of Lanesboro, a state-owned hatchery is undergoing a multimillion-dollar redo that will help keep brown and rainbow trout thriving in Minnesota's lakes and streams.
The Minnesota Department of Natural Resources is replacing the hatchery building that houses its offices and a nursery.
"It was old and basically to the point where the structure was crumbling and compromised," said hatchery supervisor Scott Sindelar.
The list of problems was long — support beams that were nearly rusted through, mold, a leaky roof, high levels of radon and nitrogen and problems with electrical, heating and plumbing systems, he said.
Left unchecked, those problems could eventually affect fish production at the state's flagship trout hatchery, which opened in 1925, Sindelar said.
Construction began on the $5 million project April 1 and is expected to be completed by November. The work shouldn't interfere with egg hatching and fish production, Sindelar said.
The hatchery, which is the largest of the DNR's four cold-water hatcheries, annually produces about 750,000 fish that are stocked in hundreds of lakes and streams across the state.
"Trout need optimal water quality. It has to be cold, fresh and flowing," Sindelar said. "We have the highest flow of groundwater, the biggest springs, so we produce the most fish."