Fish Hatchery Trail Closure Alert
The Fish Hatchery Trail is closed from Battle Creek Regional Park to Warner Rd. Please use this recommended detour until further notice.
Update October 25, 2017:
MnDOT will be performing some ditch work on the east side of TH 61 this week. They hope to see a reduction in hydro-static pressure on the western slope as measured through piezometers they have installed.
We are still working through engineering recommendations for slope and trail repair.
Update October 2, 2017:
MnDOT has gotten 3 readings from the piezometers and the inclinometer. The piezometers indicate that groundwater is collecting on the east side of 61.
MnDOT is looking at a project to restore the drainage on the east side of Hwy 61 and they will be evaluating culverts in the area as part of the surface-water work. The hope is that this will reduce water pressure in the embankment and improve the stability of the slope that is failing. They continue to collect data.
Update September 13, 2017:
The MnDOT Foundations Unit has installed 2 piezometers along TH 61 to monitor groundwater. Data collection will take approximately 3 weeks. Additional exploration of the situation might be needed, depending on the information gathered as we need to go where the data takes us. Once a determination has been made if the information gathered is sufficient, recommendations for improving the embankment will be drafted.
Update August 24, 2017:
The City and MnDOT continue the geotechnical investigation work for a better understanding of the cause of the slope failure. Soil borings have been taken in the failure area and inclinometers, which measure horizontal movement, have been installed at the bottom of the slope. The inclinometer readings indicate soil movement at lower depths below the trail surface. MnDOT’s Foundations unit will be conducting additional testing to the east of the failure area within their ROW to capture a bigger picture of what may be occurring at these lower depths. The additional testing is tentatively scheduled to start next week. MnDOT and the City will meet again shortly thereafter to discuss the results and possible short-term and/or long-term solutions for reopening the trail.
Update April 20, 2017: Initial repair work with regards to stormwater runoff across the trail and culvert repair will begin late spring 2017, but further geotechnical evaluation is still needed before a full repair can take place. The trail is not expected to reopen during summer 2017. A geotechnical evaluation is currently underway and further updates will be available upon its completion.