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A seine event on Spring Lake last week caught 2577 carp weighing 17 TONS! That’s over 34,000 pounds of carp removed from Spring Lake. Check out some awesome photos (with explanatory captions!) from the seine on Facebook page!
Upon discovering all eight of the active tagged Spring Lake fish closely grouped up on the north side of the lake, our partners at WSB & Associates were able to coordinate a seine with a commercial fisherman and his crew. Five tagged carp were ultimately caught along with the 2572 other carp, the average carp weighed 13.2 pounds. The tagged carp were returned to the lake so we can continue to track them and hopefully use them to identify their spawning grounds and future seine locations.
The fisherman sold over half of the carp (20,000 lbs!) to a buyer on the East Coast for consumption (yes there’s a market for that) and hope to sell the rest to another buyer. Based on our preliminary population estimate, this seine may have removed as much as 50% of the carp in Spring Lake. Tracking of the carp will continue and future seines will be conducted when conditions allow.
This spring, temporary carp barriers will be placed on connections to wetlands or waterbodies where carp are suspected to be spawning. This comprehensive carp control effort will lead to long-term gains for lake users, Spring Lake residents, and all those living downstream.
The seine was part of a larger carp management grant project funded by a MN Pollution Control Agency grant. You can learn more about the project on the Carp Management page on our website.View Full Article Spring Lake, carp, carp management, seine
The Stormwater Management & Flood Mitigation Study is now complete and was accepted by both the Prior Lake City Council and the Prior Lake-Spring Lake Watershed District Board of Managers in December 2016.
The Study was initiated two years ago as a result of the 2014 flood. The Study was sponsored by the Prior Lake-Spring Lake Watershed District and City of Prior Lake in collaboration with Spring Lake Township; Barr Engineering served as the consultant. The Study was comprised of four project phases: 1. Update the Watershed’s Model 2. Identify Flood Reduction Options 3. Evaluate Flood Reduction Options and 4. Develop an Implementation Plan.
Policymakers representing the three entities agreed upon four goals: Protect public safety and maintain emergency access; protect public utility infrastructure; maintain traffic flow through the County Road 21 corridor and maintain access to private properties.
Out of an initial list of 20 alternatives, the policymakers selected three to implement. They are: actively manage the Prior Lake Outlet; enhanced protection and secure upper watershed storage.
Actively managing the Prior Lake Outlet is considered a short-term goal and is the responsibility of the District. The District will create a process to analyze weather forecasts, storage capacity of existing wetlands and lakes and the flooding potential as part of updating its procedure to open the Outlet Structure’s low-flow gate. Currently, the District is only authorized by the Department of Natural Resources to open the low flow gate in response to snowmelt in the spring.
Enhanced protection is a short-term goal, as well. The City of Prior Lake will lead efforts to coordinate temporary enhanced protection measures during flood events. The City will develop a written policy which will be reviewed and adopted by the City Council.
Securing upper watershed storage is a long-term goal. This goal will identify potential storage areas that could provide flood damage reduction as well as provide water quality improvement benefits. The storage areas will be carefully considered with a key factor which includes the willingness of landowners to participate in a program to create storage areas.
A copy of the complete Stormwater Management and Flood Mitigation Study is available on our website along with other information about the project.View Full Article Flood Study, Prior Lake, flooding
The last lake in the Spring and Prior chain of lakes, Lower Prior Lake is an important recreational and ecological resource within the region. Unlike the other two lakes in the chain, it remains clean, clear and off the Impaired Waters list and the Prior Lake-Spring Lake Watershed District (PLSLWD) and the City of Prior Lake want to keep it that way. The District coordinated efforts with the City to install a water quality improvement project at Indian Ridge Park in Prior Lake as part of the ongoing effort to maintain good water quality in Lower Prior Lake. The project at Indian Ridge Park was finished in November.
The project re-shaped an unused grassy area (above; before project) on the east side of Indian Ridge Park to create a shallow depression with gentle slopes (below; after project completion). When it rains, this area now receives stormwater from the surrounding neighborhood and can fill up to roughly a foot in depth for a short period of time – usually one to two days. This will provide time for pollutants to slowly settle out of the water and be captured by the biomaterial mixed with sand which lies hidden beneath the grass before the stormwater makes its way to Lower Prior Lake. This area has been planted with low maintenance turf grass to allow for passive use. Vegetation will continue becoming established once the snow melts in the spring.
This project complements the recently completed project at nearby Fish Point Park. The project at Indian Ridge Park will help to filter out some of the pollutants from the stormwater before it reaches the water quality features that were installed at Fish Point Park, creating a “treatment train” that will help to improve the water quality of Lower Prior Lake.
Funding for this project came from the Prior Lake-Spring Lake Watershed District, the City of Prior Lake and a Clean Water Partnership Grant from the Minnesota Pollution Control Agency.View Full Article Lower Prior, Lower Prior Lake, Water quality, projects, stormwater, water quality improvement project
Each year, the Minnesota Association of Watershed Districts (MAWD) recognizes exceptional projects and acknowledges the outstanding work of Watershed Districts throughout the state of Minnesota with the MAWD Project of the Year Award. This year, the Prior Lake-Spring Lake Watershed District’s Fish Point Park Water Quality Project was one of three finalists for the award, announced at MAWD’s Annual Meeting in Alexandria on December 1.
The project was completed through a partnership between the Prior Lake-Spring Lake Watershed District (PLSLWD) and the City of Prior Lake and partially funded by a grant from the Board of Water and Soil Resources (BWSR)’s Clean Water Fund program.
Stormwater runoff from over 89 acres of land is funneled through Fish Point Park before it enters Lower Prior Lake, making it an ideal location for a stormwater treatment train. This project includes four elements: a wetland enhancement, a water control structure, a prairie restoration, and an iron-sand filter. Together, these four BMPs work to reduce the amount of phosphorus entering the lake by 34 pounds per year.
The last lake in the Spring and Prior chain of lakes, Lower Prior Lake is a regionally important recreational and ecological resource. Unlike the other two lakes in the chain, it remains off the Impaired Waters list and PLSLWD and the City of Prior Lake want to keep it that way. Given the urban watershed that surrounds this lake, significant actions to reduce untreated stormwater needed to be taken.
If you’d like to see the project for yourself, Fish Point Park is located west of Highway 13 at 15111 Fish Point Road in Prior Lake.
To learn more about the project visit the Fish Point Park project page on the District’s website or call the District at 952-447-4166.View Full Article Fish Point Park, Water quality