New Cedar Tree Revetments on the Rum River

Cedar tree revetments are a cost-effective bioengineering practice that can be used to stabilize actively eroding riverbanks. ACD staff in partnership with the Conservation Corps of Minnesota (CCM) installed a cedar tree revetment in Rum South Regional Park in the City of Anoka in July 2022. 

Erosion at the site was dominated by bank undercutting-- the beginning stage of a more serious issue. Excessive erosion along riverbanks threatens property, contributes sediment and nutrients to the receiving water body, and eliminates wildlife habitat. 

Installation of the 550-foot revetment and live bare-root plants will slow or stop the erosion and reduce the likelihood of a much larger and more expensive project being needed in the future. Cedar brush was also installed to provide additional soft armoring. Not only do revetments help protect against erosion, they also provide excellent habitat.

Pollution reduction from this project is estimated to prevent 24.75 tons of sediment and 21.03 pounds of phosphorus from entering the Rum River annually!

Funding for this project was provided by the Conservation Partners Legacy and a CCM crew labor grant funded by the Clean Water, Land, and Legacy Amendment. ACD provided project management and construction oversight throughout the process.  

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The Rules of Recreational Boating

Recreational boating has do's and don'ts and an overall etiquette accepted behavior on and around the water. Best boating practices are about safe behavior, as well as what's socially accepted. Here are the top 10 rules to respectful boating developed by the Minnesota DNR to help you navigate the boating world.

  1. Respect the ramp. Good boating etiquette starts before you enter the water - at the dock. Prepare your boat and equipment before getting into position to launch. Anything else is disrespectful to fellow boaters.
  2. Own your wake. The fastest way to make the wrong kinds of waves is to literally throw a big, obtrusive wave at another boat, swimmer, angler or shoreline owner. This is much more than being a nuisance or disrupting others' experience on the water. It's dangerous to those unable to tolerate a large wake. Stay at least 200 feet from the shoreline and other boaters.
  3. Keep the tunes in check. Sound is amplified over the water, so keep the music at a decent level. Not only is it a disturbance to others but the operator may not hear the spotter.
  4. Pack in. Pack out. Seems like common sense, right? Yet shorelines are still lined with trash being thrown overboard. Take care of the body of water you love and dispose of any trash you have. Do not throw it overboard!
  5. Slow your roll. Does the body of water you're on have a speed limit or slow-no-wake restriction? It's your responsibility to know it and respect it. You are responsible for any damage you cause to other people's property.
  6. Rules of the road. Become familiar with waterway markers and navigation rules, which dictate how you operate your vessel in order to prevent collision.
  7. Be prepared. If you are the captain, you need to be prepared with the safety rules for your craft and make your guests aware as well. Know state and local laws for the body of water you're on. Set a good example by always wearing a life jacket and have enough life jackets for each person onboard. Beyond that, make sure to have the appropriate fit.
  8. Fuel and go. At the fuel dock, get fuel, pay your bill and move out of the way. If you need to buy additional supplies, relocate your boat. Don't forget to run your blower before starting.
  9. Anchoring and mooring. Enter an anchorage or mooring area at a slow speed. Don't create a wake that will disrupt other anchored boats. The first boat sets the tone. Mimic how they tie off, how much line you use and how much distance you allow between you and other boats. The busier the boat, the more space you should give yourself.
  10. Be polite – give a wave. When passing another boat, give a little wave hello. Boating is all about having fun and being part of the boating community. Embrace it, enjoy it, and share it for generations to come.

Remember, these are guidelines and should not serve as a replacement for learning the rules, regulations and laws for your local body of water. Whether you're a novice or veteran boater, learn more by taking a boating safety course. 

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Outdoor Skills and Stewardship Trainings

If you are looking to develop your knowledge of the outdoors this summer, consider the Minnesota Outdoors Skills and Stewardship webinar series being offered by the Minnesota DNR. The webinars take place every Wednesday through the month of August and are less than an hour long. These training webinars are structured towards the general public and can be beneficial for someone who is brand new to a topic or for someone who is experienced but is looking for a refresher. Each weekly webinar covers a different topic. Topics range from "Forging on the North Shore" and "How to Harvest Wild Rice" to "New Deer Regulations" and "Smallmouth Bass River Fishing".

This training series is unique because attendees get the opportunity to learn from some of the top professionals in the state who are leading experts within their field. For people who are busy, this is a great way to learn new skills without having to commit a ton of time and resources. You can also access previously recorded webinars providing you hours of fantastic resources.

Sign up today and give one a try! Follow the link below to view the upcoming training schedule and get access to past webinars.

https://www.dnr.state.mn.us/fishwildlife/outreach/index.html 

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The Mount Simon-Hinckley Aquifer

The Mount Simon-Hinckley aquifer is one of the deepest and oldest aquifers in the state. It runs from Hinckley, MN to a large swath of south central Minnesota. The aquifer reaches depths of over 1,000 feet in some areas, containing water that is 30,000 years old. Industrial pumping of the aquifer has been banned in the seven county metro area for more than 30 years, and household use is only allowed when there is no other reasonable water alternative. Even with current restrictions, demand on the aquifer is likely to increase in the future due to projected climate conditions.

Many people think of aquifers as large underground lakes, but really an aquifer is more like sand soaked water where water trickles down through the porous space. This trickle of water may be extremely slow and it may take years for water to reach the aquifer. This leads to issues when aquifers are over-pumped and this slower recharge rate is not taken into account. There are already known areas in the Mount Simon Aquifer that are dry, caused by excessive pumping.

The Mount Simon Hinckley aquifer is an especially complicated system because of the diversity of the landscape it covers. These different landscapes have unique water flow as well as varying rock types which influence the water's ability to percolate down. Water within the same aquifer may differ in age by a thousand years depending on when the water reached the aquifer. Age of the water can be an indicator of water supply.

Learn more about how groundwater systems work by watching ACD's "Our Groundwater Connection" informational video.

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Simple Erosion Control Techniques Brings Success on the Rum River

Cedar tree revetments are a cost-effective bioengineering practice that can be used to stabilize actively eroding riverbanks. Excessive erosion along riverbanks threatens property, contributes sediment and nutrients to the water, and eliminates wildlife habitat. Installation of cedar revetments and live stakes, slows or stops the erosion and reduces the likelihood of a much larger and more expensive project in the future.

Eastern red cedars, though native to Minnesota, can be a nuisance species with a habit of taking over and dominating open grassy spaces. These cedar trees can be obtained at little to no cost through land clearing efforts and repurposed to protect streambanks and provide habitat benefit. Efforts made by ACD throughout the last 10-years have resulted in large-scale pollution reduction and extensive land protection along the Scenic Rum River. 

Since 2015, ACD has partnered with landowners, cities, parks departments, schools, and other community groups to install approximately 8,666 linear feet of cedar revetment. At the end of the 10-year project life, the current revetments in Anoka County will prevent in excess of 2,370 tons of sediment and 2,180 lbs of phosphorus from entering the Rum River, based on loading estimates.

Funding for these project was made possible through the Conservation Partners Legacy, Conservation Corps of Minnesota & Iowa crew labor grants funded from the Clean Water, Land, and Legacy Amendment, and contributions from landowners. ACD provided all project administration, design and installation oversight.

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