During a recent site visit to explore wetland restoration opportunities, ACD staff came across a fantastic example of beavers' "engineering" skills in action! A series of three beaver dams, located near the outfall of a Rum River tributary, were effectively slowing and spreading the stream's flow into the surrounding floodplain wetlands. Healthy connections between streams and their floodplains provide numerous water quality and habitat benefits, and in this case those benefits also extend to the Rum River immediately downstream.

Many streams in modified landscapes take on excess water from artificial drainage features like ditches and storm pipes. Over time and especially during extreme precipitation events, these higher volumes of water often increase erosion within the stream, which can lead to the straightening and downward-cutting ("downcutting") of the stream channel and, as a result, the disconnection of the stream from its floodplain (see the figures below, produced by American Rivers). 

Floodplain reconnection efforts are an increasing priority amongst many conservation organizations, but they can be costly and complicated – particularly if development has occurred within the floodplain. However, in areas where streams have room to spill into their floodplains without causing damage, allowing and even promoting beaver activity can be a cost effective way to help restore riparian corridors. Learn more about the benefits of beavers in the articles below. 

- University of MN Study 

- King County, WA

- Riding Mountain National Park, Canada

For more information contact Breanna Keith, Water Resources Technician, at This email address is being protected from spambots. You need JavaScript enabled to view it. 

Construction is complete for a Rum Riverbank stabilization at Dellwood River Park in St. Francis. Erosion of the riverbank was resulting in the loss of numerous trees into the river and was threatening a popular local walking trail. The project design features three primary protection measures.

1. Two severely eroding zones of riverbank were armored with rock riprap, and 14 large tree rootwads were added as in-stream habitat.
2. Three rock bendway weirs were installed, protruding at 45° into the river. These low-lying features, will push flow and erosive scour back toward the middle of the channel, rather than along the outer bank.
3. And finally, the less severely eroding areas of riverbank were armored with cedar trees in a bio-engineering technique called "cedar tree revetments".

In total, this project stabilizes 630 feet of riverbank, enhances 0.75 acres of in-stream and riparian habitat, and reduces annual loading into the river by 60 tons of sediment and 51lbs of phosphorus. The project also incorporates multiple features to enhance fishing opportunities and provide additional in-stream habitat. 

For more information contact Jared Wagner, Water Resource Specialist, This email address is being protected from spambots. You need JavaScript enabled to view it. 

"When Development Comes to Town" is an animated video directed toward local decision makers that tackles some of the challenges and opportunities presented by growth in our small communities. Developed by the Lower St. Croix Watershed Partnership and East Metro Water Resources Education Program, this fast-paced video runs through a gauntlet of topics in about ten minutes, introducing the viewer to concepts ranging from shoreland ordinances to Minimal Impact Design Standards (MIDS). This video masterfully weaves together complex insights and downhome practicality with just the right amount of visual interest and is a 'must watch' for new, or even experienced, elected officials, staff and planning commission members for local governments. Click the link and enjoy! When Development Comes to Town

Contact Chris Lord, District Manager, This email address is being protected from spambots. You need JavaScript enabled to view it. with questions. 

 ACD would like to send out a big thanks to our hardworking volunteers for all their great work during the 2023 monitoring season. State-wide data networks are made up of thousands of dedicated volunteers and provide some of the oldest and most reliable data in the state. These historical data sets are crucial for accurate trend analysis and assist in making informed management decisions. The data provided by volunteers helps verify high rainfall totals, provides critical information during flooding events, monitors drought conditions, and provides needed guidance on Minnesota's changing climate. Some of ACD's volunteers have been long time participants and have contributed data for over 15+ years.

The Volunteer Precipitation Monitoring network includes more than 20,000 volunteers nationwide who measure daily rainfall. Explore climate data through the Minnesota State Climatology database https://climateapps.dnr.state.mn.us/index.htm.
The Lake Level Monitoring Program documents seasonal fluctuations of water levels in around 1,050 lakes throughout Minnesota. Explore lake data through the Minnesota 'Lake Finder' database. https://www.dnr.state.mn.us/lakefind/index.html

For more information contact Kris Larson, Water Resource Specialist, at This email address is being protected from spambots. You need JavaScript enabled to view it..

"Climate is more than just numbers." – Jim Zandlo

Eight Martin Lake residents, in collaboration with ACD, are bundling their individual lakeshore improvement efforts into one larger project. By joining efforts, they are hoping to save money while making the work more attractive to contractors. It seems to be working, as 15 contractors joined in the bidding process!

This upcoming project is being coordinated by ACD, who has completed designs and will be providing construction management. ACD has also been able to incorporate three state grants, making the project even more affordable. In exchange, the landowners are installing lakeshore stewardship practices that go above and beyond – utilizing natural materials, native plant buffers, and aquatic vegetation for habitat. Collectively, we'll make a healthier lake.

For a fun & informative 8-minute video about healthy lakeshores, watch ACD's video "Our Lakeshore Connection." For more information contact Jamie Schurbon, Watershed Project Manager, This email address is being protected from spambots. You need JavaScript enabled to view it. 

Minnesota boasts an impressive 12,208 lakes, as classified by the Minnesota DNR. Among them, 8,402, or roughly 69%, are classified as 'natural environment lakes.' Anoka County is home to several natural environment lakes including Fawn, South Coon, and Island Lakes.

What defines a natural environment lake? These are the smaller, shallower lakes, typically less than 150 acres in size and less than 15 feet deep. They come with numerous developmental constraints and are particularly sensitive to disturbance. With lakeshore properties in high demand across Minnesota, many natural environment lakes are now being earmarked for development. However, it's important to note that the lakeshore experience offered by these lakes might not align with the typical desires for boating or swimming that potential buyers often have.

Learn more about natural lakes on November 8th through a webinar featuring Joe Bischoff, an aquatic ecologist at Barr Engineering Co. Joe will delve into the intricacies and benefits of natural environment lakes. Additionally, some of the ongoing local conservation efforts to monitor and protect natural environment lakes will be highlighted.

Register today at tinyurl.com/small-lakes

ACD was awarded a contract with the Anoka County Parks Department to complete 2,500' of cedar tree revetments along the Rum River in Anoka County between 2023 & 2026. This project is being funded through a Clean Legacy Partners grant that was awarded to Anoka County Parks in 2023. The work will be completed through a partnership between ACD, Anoka County Parks, and the Conservation Corps of MN. 

Fall is a great time to manage buckthorn on your property. Common and glossy buckthorn are invasive woody shrubs which aggressively outcompete native plants, disrupting the habitat benefits they provide. Buckthorn chemically alters the soil, creating an inhospitable environment for other plants.
Buckthorn leaves stay green longer than most other Minnesota woodland trees and shrubs so you'll easily notice them in mid to late October.
Common buckthorn (Rhamnus cathartica) can be found in upland forests. Look for the thorn, which can be found at the end of some branches. Glossy buckthorn (Frangula alnus) tends to grow in slightly wetter areas but can be found in a variety of habitats. There are no thorns. Look for the rust colored terminal bud.

New research from the University of MN suggests that buckthorn seeds do not persist in the soil for 6+ years as was previously thought. Their findings suggest that over 97% of seeds germinate in the first year. As you manage buckthorn, aim to prevent seed production on mature plants with mid-summer cutting and follow up with treatment of the small sprouts for the best results.

See ACD's buckthorn fact sheet for tips on identifying buckthorn, to learn about native look-alikes, and compare methods for controlling common and glossy buckthorn. For more information contact Logan Olson, Restoration Technician, at This email address is being protected from spambots. You need JavaScript enabled to view it.

 ACD strives to build resilient pollinator corridors throughout Anoka County. This goal is accomplished by protecting and enhancing existing habitat and creating new habitat. ACD is fortunate to have local partners who also share this vision and are helping identify unused turf areas that can be converted to native plantings. ACD is currently working with the Cities of Fridley and Blaine to convert turf into prairie plantings in public green spaces. Half an acre of turf is being converted in Fridley's Commons Park and 0.3 acres of turf to prairie at Blaine's Laddie Lake Park. Staff from both cities prepared the sites and mowed the sites to prevent weeds from seeding. ACD staff seeded the sites in the spring. Members of the Cities and multiple volunteer groups planted native grasses and wildflowers to add to the seed mix.

These projects are funded by BWSR's Habitat Enhancement Landscape Pilot (HELP) grant. Other ACD HELP turf to pollinator projects are at Coon Lake County Park, Bunker Hills Regional Park and Ramsey River's Bend Park. The BWSR HELP grant also provides funds to enhance native prairies at the Cedar Creek Conservation Area, Bunker Hills Regional Park, Rum River Central Regional Park, Rice Creek Chain of Lakes Park Reserve and Mississippi West Regional Park.

One way to help these projects is to donate your native prairie seeds, including milkweed seed. See ACD's previous post about milkweed seed collection. Watch this short video to see butterfly milkweed seed cleaning. 

For more information contact Carrie Taylor, Restoration Ecologist, at This email address is being protected from spambots. You need JavaScript enabled to view it.

Construction is set to take place in October along 630-feet of eroding Rum Riverbank at Dellwood River Park in St. Francis. Erosion of the riverbank is causing numerous trees to fall into the river and is threatening a popular local walking trail. The project design features three primary protection measures;

• 1)Two severely eroding zones of riverbank encroaching on the trail will be built back out, armored with rock riprap, and have large tree rootwads added as in-stream habitat elements. The riprapped length of bank will total approximately 180-feet in length. Large boulders will be strategically placed within the riprap to allow enhanced shore fishing opportunity.
• 2)Three bendway weirs constructed of rock will protrude at 45° into the river. These low-lying, linear features will be submerged under the water (except during very low flows), and will push flow and erosive scour back toward the middle of the channel, rather than along the outer bank. They will also add variable flow areas and habitat value in the channel. These will be great features to cast around for any fisher folks from shore!
• 3)And finally, the less severely eroding areas of riverbank will be armored with anchored cut cedar trees in a technique called a "cedar tree revetment". Cut eastern red cedars will be cabled together in a shingled fashion along the bank and secured with earth anchors driven into the soil. This is a softer armoring approach than rock which should help the bank stabilize, vegetate, and heal over time naturally before the cedar trees eventually rot away.

For more information contact Jared Wagner, Water Resource Specialist, This email address is being protected from spambots. You need JavaScript enabled to view it. 

Do you have native milkweed plants on your property? If so, early fall is a great time to collect seed. Seeds are mature and ready for collection once they are darker brown. Milkweed pods will turn from green to brown, start to open up and reveal the brown seeds inside. Pods will continue to open up and the seed will fly out and disperse. However, it's ideal to collect seed before the pods fully open up and the seed fluff/silk develops. It is best to remove the fluff from the seed for storage. To separate the seed from the fluff, remove the entire stalk of seeds and fluff/silk from the seed pod, hold the end of the fluff/silk and gently push and pull the seeds off the fluff/silk. Watch this short video to see butterfly milkweed seed cleaning. Once the seed is "cleaned" (the fluff is removed), lay it out to dry completely, label the seed with the plant species name (common or butterfly milkweed), and write the date and location the seed was collected. Store dry seed in paper or mesh plastic bags.

ACD collaborates with Anoka County Parks and cities within Anoka County to enhance local native habitats. If you have native milkweed seed you would like to donate, ACD staff will happily take it and spread seed at appropriate locations. Contact Carrie Taylor, Restoration Ecologist, at This email address is being protected from spambots. You need JavaScript enabled to view it.. There will be a waterproof box outside the ACD office for seed drop off. Be sure to label the milkweed species. ACD office address: 1318 McKay Dr NE Suite 300, Ham Lake, MN 55304. 

Meet The Milkweeds 

Monarch caterpillars feed exclusively on the leaves of milkweed. Let's help feed these hungry caterpillars!

A rain garden at the Coon Lake Beach Community Center needed a little help. Originally constructed in 2015, maintenance had reached a point where a group effort was needed to reclaim the garden from weeds and silt overload. The Community Center leaders enlisted a local boy scout troop, their parents, and ACD to help.

The rain garden has an important function in the neighborhood as it is positioned near the bottom of a hill to collect street runoff. Instead of going into the lake at the bottom of the hill, the water and associated pollutants are treated by infiltration. The reduction in volume of water running towards the lake also helps alleviate shoreline erosion in specific problem spots.

In one-hour the scouts completed several renovations to bring back much of the original beauty and function. They removed four trailer loads of invasive trees including many thorny black locust. They removed sediment that had collected and was damming the rain garden entrance. Rocks and retaining walls were cleared of debris, leaving the garden with a more formal appearance and ready for the next rainfall. Great job scouts!