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Wildlife Protection

Keeping It Simple: Easy Ways to Help Wildlife Along Roads

Natural berm controls runoff in a small space

Route 5 along Maine's Little Ossippee Lake is a narrow causeway. To keep highway runoff from entering the lake, the Maine Department of Transportation found a non-standard solution that would work in a narrow space. Maintenance crews installed a 3-foot-high by 250-foot-long bark mulch berm between the edge of the highway and the lake. They also braced the shoreline with riprap, topping it with bark mulch to prevent the sun from heating the rocks. The berm visibly collects road sand, litter, and other "debris" later removed by the lake association, and the riprap offers the lake's trout and other fish species shaded "nooks and crannies" for foraging.
--Apr 25, 2003

Chris Rushton, (207) 624-3219 or

Erosion control bark mulch berm on Route 5 along  Little Ossippee Lake
Photo by Susan Breau, Maine Department of Transportation
Erosion control bark mulch berm on Route 5 along Little Ossippee Lake

Along Roads - Maine
Updated: 12/12/2012
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