The Alouette River Management Society (ARMS) has come up with a unique response to a beaver nuisance.
In late October, ARMS began receiving reports about an increase in beaver activity behind 126th Avenue. While the dam wasn’t an immediate concern, heavy rains soon caused water to back up onto neighbouring properties. Also, the beavers had begun chewing some of the larger nearby trees, explained Sophie Sparrow, ARMS spokesperson.
“Beavers often get labeled as destructive or as a nuisance, but they are one of the most important species for watershed health,” said Sparrow. “Their dams store water in the ground, recharge aquifers, slow floodwaters, trap sediment and pollutants, and create vital habitat for fish and wildlife. With increasing drought pressure in our region, their natural engineering is more valuable than ever.”
The traditional response follows a negative cycle, she explained.
1. Digging a hole in the dam to release water – which triggers the beavers to fortify and expand the dam.
2. Removing the dam – which causes the industrious animals to rebuild.
3. Trapping or relocation methods – often fatal, leaving beavers without food or shelter, especially at this time of year when their winter caches are essential for survival.
In the local situation, ARMS wanted a different approach. With a collaborative effort between ARMS, the City of Maple Ridge, The Fur-Bearers, Silver Creek Wildlife, and local residents, they moved forward with a non-lethal approach that addressed neighborhood concerns and supports a healthy watershed.
A pond leveler was installed on Jan. 13. This long pipe goes through the beaver dam, allowing water to flow steadily without triggering the beavers’ instinct to rebuild. The top portion of the dam can be reconstructed by the beavers, allowing them to maintain their home, while preventing flooding on nearby properties.
The larger trees are being protected with a cage around thier stumps.
“This approach protects residents, the creek, and the beavers – a true win-win,” said Sparrow.
“This project is a great example of how collaboration and coexistence lead to better outcomes for our community and our environment.”