In This Issue
Water levels in the Canisteo Legacy Mine Pit have dropped from 1,311 to 1,309.07 feet since the Minnesota Department of Natural Resources began contingency pumping last December.
?At this time last year, Canisteo water levels were 1.7 feet higher than they are right now,? said Mike Liljegren, assistant director for the DNR?s Lands and Minerals Division. ?That means that over the last year, more water was pumped from Canisteo than the amount of water that went in naturally from groundwater, rain or snow melt.?
Winter contingency pumping was a water level management project to ensure that Canisteo?s water levels stayed below 1,318 feet. 1,318 feet is the water elevation at which the underground water pathway called a drain tile system can continue to operate and capture groundwater from the Canisteo and move water away from residential structures in the city of Bovey.
The DNR shut down water pumping activities on May 14, when the water temperature in the Canisteo increased to 48 degrees for four consecutive days. The decision to turn off the pumps was crucial to prevent the spread of zebra mussels, an invasive species. When water temperatures rise to 50 degrees or warmer, zebra mussels begin to reproduce. Immature zebra mussels called veligers, which are smaller and much more buoyant than a mature zebra mussel, have an easier time traveling through water. Turning off the pumps before zebra mussels reproduce helps ensure that veligers are not carried to downstream waters. ?
Looking ahead, the DNR is dedicated to continued monitoring, evaluation, and implementation of a permanent outlet structure to manage Canisteo water levels.? The 2023 legislature approved $8.875 million dollars for construction of an outlet at the Canisteo to provide permanent and year-round water level management. The DNR is working on bidding out construction, which will include more dewatering of Canisteo. Construction of the outlet could potentially start in 2023.
Learn more about the Canisteo water management project and plans at the DNR website (mndnr.gov/lands_minerals/waters_program/canisteo.html).
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After closure due to flooding, Fort Snelling State Park will reopen to the public on Saturday, May 27. The visitor center, park office, parking lots, swimming beach, picnic area near the beach and Snelling Lake trail will be available to the public. Some other areas will remain closed.
Fort Snelling State Park will host three events with the park?s interpretive naturalists this weekend. Naturalist programming is open to visitors of all ages. Details about the events offered are available on the park?s webpage of the Minnesota Department of Natural Resources website (mndnr.gov/fortsnelling).
In addition to event information, people are encouraged to check the park webpage for visitor alerts that explain what to expect at the park. Pike and Picnic islands will remain closed indefinitely due to continued flooding and debris from two flood events this spring. The fishing pier at Snelling Lake will undergo minor repairs before being available for use.
The park was closed April 21 through May 15 due to flooding caused by snow melt. The park closed again on May 17 after heavy rainfall in southern Minnesota raised river levels on the Minnesota River, causing a second flood event at the park.
As always, visitors will need a state park vehicle permit to drive into the park. Vehicle permits can be purchased online or in person at the park during open office hours. Find information on the DNR?s state park permits page (mndnr.gov/permit).
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