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By Amy Wolfe
In terms of fish passage, a certain culvert on Pennsylvania’s Little Lyman Run in Potter County was about a bad as it gets.
Only 1.9 percent of predicted flows would allow adult brook trout to make it through the culvert on the small tributary to Cross Fork Creek, according to a TU aquatic organism passage inventory.
That number is now 100 percent, thanks to a culvert replacement project completed this summer.
Replacing the undersized culvert not only opens up 7.8 stream miles of coldwater trout habitat, it also will result in reducing 3.6 tons of annual nonpoint sediment inputs. Managing erosion from undersized or failing culverts is often burdensome for local townships.
