KNOW YOUR SHORELINE

Minor erosion at the toe of slope exposed during low water. If the erosion is addressed early, larger bank failures in the future may be avoided.

If you live on water, whether it be a lake, river, creek, or stormwater pond, low water during the summer months can provide a great opportunity for you to conduct a quick inspection of your shoreline condition. The very bottom of your shoreline, where it meets the water, is called the toe and is the most critical part for stability.

Low water often exposes the toe of the slope and allows you to identify areas of concern. For example, you might observe undercutting, where the lowest portion of the bank has been scoured away by flowing water or wave action. When problems are caught early, the solutions are often much simpler and cheaper. Addressing erosion concerns early also helps prevent more severe bank failures down the road.

Another good time to inspect your bank is in the fall once leaves have fallen and before snowfall. You can inspect the upper portions of your bank for problems like rutting from concentrated overland flow over the top of the bank.

If you have any questions about your shoreline or think a site visit may be warranted, please contact ACD staff. We're here to help. 

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RAIN GARDENS IN THE CITY OF ANOKA

Street reconstruction projects often provide opportunities to install new projects that can benefit water quality in nearby waterbodies. In the City of Anoka, four curb-cut rain gardens are currently being designed in conjunction with a street reconstruction project. The designs are being done by ACD in partnership with the City of Anoka and landowners. The rain gardens will capture stormwater runoff before it enters the storm sewer system, which discharges to the Rum River.

High priority properties with large contributing drainage areas were targeted. Those properties with landowners willing to transition some yard space out near the road from turf grass to garden area and agree to provide maintenance are being considered for rain garden installation. Funding for design is provided by a Metropolitan Conservation Districts Engineering and Technical Assistance Program, and installation funding will be provided by the City of Anoka.

Watch for additional updates as designs are finalized and the rain gardens are installed. To see other rain gardens already installed throughout Anoka County, please see the virtual project tour on ACD's website. 

Curb-cut rain garden example
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Save Money and Water in 2022

Spring is here. If you have an irrigation system for your yard, you're likely considering getting it up and running within the next month or two. System startup is the time when you're setting the watering duration and frequency for each zone in your yard. These settings often remain unchanged throughout the season, which typically results in overwatering. Overwatering wastes drinkable water, and assuming you don't have a private well, it also wastes money. 

This year, in addition to following city restrictions (e.g. odd/even watering schedules), try actively managing your irrigation controller. Active management consists of adjusting run times based on local conditions. For example, during periods with sufficient rainfall, watering duration and frequency can be reduced. During these times, you can simply turn your irrigation system off. In contrast, during periods of extreme heat and drought, supplemental watering may be necessary. Watch your yard for signs of drought before turning on your irrigation system, and rely on rainfall as much as possible. When you need to use your irrigation system, water your lawn one time or less per week with a good soaking to encourage deeper root growth, and schedule watering times in the morning to reduce evaporation associated with midday heat and wind.

An alternative to active management is a smart irrigation controller. Smart irrigation controllers use an internet connection to actively monitor local precipitation patterns and automatically adjust watering frequency and duration accordingly. Regardless of whether you choose active management or a smart irrigation controller, both are effective options for reducing water use and saving money.

Visit the University of Minnesota Extension's Lawn Care website for additional lawn management resources. 

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LAKE GEORGE SHORELINE STABILIZATION PROJECTS IN 2022

Seven lakeshore stabilization project designs are underway for properties on Lake George. ACD staff conducted targeted mailings based on a previously completed erosion inventory and site visits were then conducted at properties with interested landowners. Potential project sites were prioritized by water quality improvement potential, and with the funding available, seven sites were chosen to be developed. Construction of these projects is anticipated for summer, 2022.

Lakeshore stabilization techniques include coir logs, native vegetation buffers, minor regrading of ice heaves, and minimal riprap. The picture to the right shows an eroding shoreline with a short bank height that can be stabilized using a coir log and native vegetation. Stabilization of the lakeshores will reduce pollutant loading to Lake George and thereby provide water quality benefits. The native plant buffer areas will also provide habitat benefits.

Funding is provided by a Rum River Watershed Based Implementation Funding grant and landowner contributions. Watch for additional updates as the projects progress through final design and construction. 

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2021 ACD TECHNICAL ASSISTANCE SUMMARY

ACD staff provide technical assistance for a wide variety of projects each year. Many of the requests for assistance come directly from landowners interested in improving natural resources or addressing concerns on their properties. Technical assistance is also provided for projects in collaboration with county, city, and watershed entity partners. The table to the right summarizes 2021 technical assistance provided by ACD staff.

Assistance begins with a site consultation. Consultations typically include a conversation with the landowner, desktop review of the site using GIS mapping software and available data sets, and a site visit to discuss options. If the landowner is interested in pursuing a project, ACD can provide design and installation oversight services. Maintenance guidance is also provided for previously installed projects.

Additional information about active projects and those previously completed is available on ACD's project tracking map.

https://www.arcgis.com/apps/Shortlist/index.html?appid=d1e76c3d808743c1b149bde24c990894 

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