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Lake Pepin Ice Measurement

Ice Measurements March 18, 2026

Final Measurements for the year were taken March 18, 2026 - the first tow through Lake Pepin was on March 22, 2026 
Lake Pepin ice measurement locations

Composite 12-Year measurements from 2015-2026 

Map: Lake Pepin ice survey locations (PDF)

Lake Pepin ice thickness measurements typically start in mid-February and are conducted on a weekly basis. Measurements are reported from each mile on the Upper Mississippi River between mile 765 and 786. These measurements are taken at the points indicated on the map and the ice thickness is valid for that location only.

 

Lake Pepin Ice Measurements

Contact



U.S. Army Corps of Engineers
St. Paul District
Channels & Harbors Project Office
Fountain City, WI
Office: 651-290-5150
mvp.stpaul.channel@usace.army.mil

Resources

- Frequently Asked Questions

 Previous Ice Measurement Reports

2025 2024 2023
2022 2021 2020
2019 2018 2017
2016 2015 2014
Year Thickest ice Last measured
2025 18" March 12
2024 13" February 1
2023 22" March 6
2022 27" March 16
2021 23" March 11
2020 19" March 3
2019 25" March 20
2018 30" April 4
2017 17" February 15
2016 19" March 9
2015 27" March 24
2014 32" April 9