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. 

Six rain gardens will be constructed on residential properties in a City of Fridley neighborhood adjacent to Rice Creek in 2022. The properties were identified as priority rain garden locations in the Lower Rice Creek Stormwater Retrofit Analysis (SRA) completed by Anoka Conservation District in partnership with RCWD.

The priority rain garden locations identified in the SRA were used to target landowners for rain garden installation in conjunction with a mill and overlay project in the same neighborhood. Based on landowner interest, ACD provided site assessments and designs, which resulted in the six rain gardens to be installed.

Stormwater runoff that flows by each of the rain garden locations is currently piped directly to Rice Creek. Curb-cut rain gardens at these locations will provide reductions in runoff volume, total suspended solids, and total phosphorus reaching Rice Creek, Locke Lake, and ultimately the Mississippi River. Cumulatively, the contributing drainage area to the six proposed rain garden locations is nearly five acres and comprised of medium-density residential land use.

Because this area of the watershed is fully developed, large regional options for treatment are limited. The six proposed rain garden locations are optimally positioned because they have large contributing drainage areas for the neighborhood, provide sufficient space for appropriately sized rain gardens, have minimal utility conflicts, and either have appropriate underlying soils for infiltration or are adjacent to a storm drain for filtration.

ACD staff worked with landowners of the six properties to size rain gardens appropriately for each contributing drainage area and position the rain gardens in approved locations. Designs accounted for existing landscaping, yard slope, underlying soils and utilities, and landowner requests. Planting plans were also developed in collaboration with landowners to incorporate requested native species.

The project will be funded through a combination of the Rice Creek Watershed District's Water Quality Grant Program and the City of Fridley. The landowners will be responsible for ongoing maintenance of the rain gardens.

Watch for additional updates as the rain gardens are installed in 2022. To see other rain gardens already installed throughout Anoka County, please see the virtual project tour on ACD's website.