Shoreline Erosion: A Growing Concern for Lakeshore Property Owners

Shoreline erosion is a common and increasing challenge for landowners across Kanabec County. It often occurs when waves, ice ridges, storms, or runoff wear away the soil along the water’s edge - a process that’s intensified by shoreline development and recreational lake use.

Read about the incredible power of ice as it relates to shoreline management:

¡ICE POWER! By Gerald L. Paul, Spring 1987 Water Talk (Adapted for 2003) [PDF]

Erosion can lead to the loss of valuable land, damage to structures, and declining property value. It also affects the health of the lake itself, contributing to murky water, loss of fish and wildlife habitat, and reduced water quality. Fortunately, there are effective, sustainable ways to address this - and shoreline restoration is one of the best.

Why Choose Native Plants for Shoreline Restoration?

Restoring your shoreline using native vegetation is a proven way to protect your land while also protecting the lake.

• Erosion Control: Deep-rooted native plants stabilize soil more effectively than turfgrass or traditional lawn mixes. They reduce the impact of wave energy, stormwater runoff, and ice movement.
• Sustainable Solutions: Once established, native plant buffers require little maintenance, reduce the need for amendments, and don’t rely on irrigation.
• Eco-Friendly Landscaping: Native plantings support pollinators, birds, fish, and other wildlife - enhancing your property’s beauty and helping preserve the natural character of the lake.
• Preserving Your View: When designed thoughtfully, shoreline restorations can maintain open views while meeting both functional and aesthetic goals.

What About Riprap (Rock Shorelines)?

Riprap can be appropriate in limited, site-specific situations, but it’s often overapplied. Slope alone is not a reason to default to rock. Native vegetation can be successfully established on steep banks and typically provides more stable, long-term protection.

In this region, riprap shorelines are not natural features. Installing riprap represents a significant disturbance to the shoreline and nearshore zone, replacing a living system with a static, artificial one.

It’s also important to understand the limitations of rock:

• Riprap does not stop ice action. Ice heaving and ice push will move rock, often pushing it inland or pulling it downslope over time. As rock shifts and piles up, it can give ice more material to grab, increasing the force exerted on the shoreline and worsening damage.
• Rock does not filter runoff, provide meaningful habitat, or stabilize soils the way vegetation does. Deep-rooted native plants bind soil, absorb wave energy, and improve water quality.
• Even on steep or higher energy shorelines, well-designed native plantings and bioengineering approaches provide durable, long-term protection. By contrast, riprap can reflect wave energy, shift erosion elsewhere, and degrade nearshore habitat.
• Overuse of rock across a lake system can contribute to cumulative ecological impacts, including habitat loss and reduced shoreline resilience.

Natural shoreline restoration should be the default approach. In situations where additional structural protection is needed, limited and strategically placed rock can be incorporated as a supporting element within a vegetation-based design, not a replacement for it.

Elements of Shoreline Restoration

• Soil Stabilization: Native plants protect soil from wave energy and rainfall. In contrast, turfgrass and lawn mixes (especially when mowed to the water’s edge) are shallow-rooted and highly susceptible to erosion.
• Buffer Zones: A planted buffer helps trap nutrients and sediment before they reach the lake, protecting water quality and reducing algae growth.
• Resilience to Weather: Natural restorations are more adaptable over time - especially with storm damage, fluctuating water levels, or changing climate conditions.
• Long-Term Protection: Restoration is an investment that strengthens over time. Once established, native vegetation protects your shoreline season after season with minimal input.

How Restoration Works

1. Site Visit and Planning: Our team will evaluate your shoreline conditions and, if needed, develop a custom restoration plan tailored to your property.
2. Plant Selection: We select native plant species suited to your site’s light, soil, slope, and wave conditions — to ensure both effectiveness and aesthetics.
3. Installation and Care: After planting, only light maintenance is needed until vegetation is fully established. From there, your shoreline is protected with little annual effort.

Ready to Protect Your Shoreline - and Your Lake?

Kanabec SWCD works with landowners to implement shoreline restorations that are effective, environmentally sound, and long-lasting. Whether you're looking to stop erosion, improve habitat, or simply preserve the natural beauty of your property, we're here to help.