Planning Ahead to Avoid Conflicts with Beavers

Planning ahead can significantly reduce future conflicts with beavers. The easiest way to avoid these conflicts is to refrain from altering the riparian area and floodplain adjacent to streams. Even if these areas no longer have native riparian vegetation, they remain vulnerable to flooding if a beaver dam obstructs the stream. Without their preferred native plants, beavers may chew on your ornamental landscaping if it is easily accessible from the stream. In some cases, they might even take boards from a fence to build their dams. By planning for the presence of beavers—even if there are currently no signs of them in the area—you can avoid a lot of frustration later. Here are some tips:

Stay High and Dry

When beavers build dams, they spread water across the stream and into the floodplain. The resulting beaver ponds can quickly transform a dry streambank or floodplain into a complex wetland teeming with life. If you have built your driveway, house, or fence in these low-lying areas, you will constantly battle to keep them above water and mitigate damage whenever water levels rise.

When developing streamside property, the best advice regarding beavers is to keep construction on high ground. Avoid building in or paving low-lying areas that may become flooded if a beaver family moves in next door.

Modify Affected Structures and Infrastructure

Sometimes, it is possible to modify structures instead of interfering with beaver activity. While this may seem more costly upfront, it can save money in the long run because you will likely only need to do it once. Beavers will continue to return and cause the same issues if suitable habitat is present.

For example, a fence or trail that is regularly flooded should be rerouted or elevated to avoid inundation. Portable sheds, greenhouses, benches, and picnic tables should be moved to higher ground to prevent damage when water rises.

When updating or replacing structures like culverts, bridges, or stormwater infrastructure, consider what might be impacted if beavers move into your neighborhood stream, build dams, and back up water. Plan and design your projects accordingly. You can contact your local watershed council or environmental consultants for assistance in evaluating available habitat and the potential for beavers to impact your property.