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Wisconsin River Flood Update – April 16, 2026: 12:30PM

4/15/2026

Columbia County Emergency Management Office shared that the National Weather Service is forecasting the Wisconsin River could reach a major flood stage of approximately 20.7 feet in the morning hours of Thursday, April 16. As of this update, the river level is 18.9 feet and rising. This remains a forecasted estimate and may change based on evolving conditions.

The City, in coordination with Columbia County and the Wisconsin Department of Natural Resources, has established flood response procedures and is actively working to respond to rising water levels. As of this notice, the following streets within the City of Portage will be closed this afternoon due to rising water. A map is attached for reference.

  • Summit street - River Street to Carroll street
  • Carroll street - Summit Street to Prospect Avenue
  • Conant street - Prospect Avenue to Sunset Street
  • Prospect avenue - Carroll Street to 500' east
  • Pleasant street - Conant Street to 500' east

Sand and sandbags are available to the public at two locations. Residents should bring a shovel and an appropriate vehicle or trailer for transport: Sand Shed at old Public Works Garage (616 Washington St, Portage) and the Columbia County Highway Shop (338 W Old Highway 16, Wyocena).

Additional resources:

  1. Columbia County Press Release Website for Updates
  2. National Weather Service WI River Gauge
  3. Columbia County Flood Fight Handbook
  4. WI Department of Health Services Information

In the event of an emergency, residents are advised to call 911.

If residents need a sump pump for their home, please contact Columbia County Emergency Management at (608) 742-9890 for information on available resources.

City staff are actively monitoring weather conditions and river levels and are prepared to respond as needed. Updates as necessary will be shared on the City’s website and social media channels as conditions evolve.

 
ATTACHMENT:
MAP OF CLOSED ROADS