March 6, 2024- Due to warmer weather, Rochester Public Utilities (RPU) will be slowly restoring the reservoir to the summer pool elevation of 914.5 MSL the week of March 11^th.  Lake Zumbro will be maintained at normal summer pool (914.5 MSL) throughout the rest of the spring and summer season, to the extent possible. However, the public should be aware that the Zumbro Hydroelectric Plant has extremely limited capacity to pass flood flow, resulting in occasional high water events that exceed normal pool.

Real-time lake level information is available on the RPU web site (www.rpu.org). For additional information regarding the Zumbro Dam and Hydroelectric Facility please contact Tony Benson 280-1534 or Todd Osweiler, 280-1589.

Tips for safe boating:

Watch the weather. Be aware of changing water levels and conditions that would expose logs, snags or cause floating debris. Be cautious when boating in the vicinity of the dam. Do not proceed past the warning signs and buoys. Tell someone where you are going, who is with you, and how long you will be away. Avoid standing, and when changing seats, stay low and near the centerline of your boat. Be ready for trouble when a powerboat passes you in a narrow channel. Maintain a safe operating speed. Always wear approved personal flotation devices (PFD).

About Rochester Public Utilities

As the municipal utility of Rochester, Minn., for more than 110 years, RPU provides high-quality and reliable electricity to over 58,000 customers.  Water customers number more than 41,000.  RPU continually investigates innovative technologies to help customers realize the best value from the services they receive.  Current initiatives include photovoltaic offerings, wind energy, energy and water efficient equipment, and electric vehicle charging.

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ROCHESTER, MN—The fall drawdown of Lake Zumbro is scheduled to begin on October 29^th. The drawdown is necessary for planned maintenance at the hydroelectric facility and shoreline restoration work.  The public should be aware that the drawdown planned for this fall will be substantially greater than normal.  A typical fall drawdown is less than two feet; whereas this year a four foot drawdown will be attempted.  These plans are subject to change depending on rainfall and resulting runoff.  RPU’s drawdown plan is as follows:

• Sunday, October 29^th start the 4 foot drawdown.
  • RPU will plan to draw the lake level down 0.5 feet per day while maintaining a minimum flow of 70 cfs.
• Monday, November 6^th the lake level will be held at 910.5 (~4.0 feet below the spillway) for 2 weeks.
• Monday, November 20^th start to slowly refill the lake level until it reaches the winter pool elevation of 913.0
  • RPU will plan to refill the lake level while maintaining a minimum flow of 70 cfs.

The drawdown plan is subject to change depending on weather conditions.

During the months of December through March, Rochester Public Utilities (RPU) will attempt to maintain the lake level at the winter pool of 913.0 MSL.

Real-time lake level information, along with Lake Zumbro hydro updates are available on the RPU web site (www.rpu.org). For additional information regarding the Zumbro Hydroelectric Facility please contact Tony Benson at (507) 280-1534.

Tips for lake ice safety:

Be extremely careful during winter activities that involve Lake Zumbro such as ice fishing, snowmobiling or just walking out on the frozen lake.

Watch the weather and river flow conditions.

Ice thickness and condition can vary greatly. Be very cautious.

Look out for ice heaves and exposed logs and snags.

Be cautious in the vicinity of the dam. De-icing equipment has been installed along the upstream face of the dam resulting in open water and/or thin ice.

Do not proceed past the warning signs and buoys.

About Rochester Public Utilities

As the municipal utility of Rochester, Minn., for more than 110 years, RPU provides high-quality and reliable electricity to over 56,000 customers.  Water customers number more than 40,000.  RPU continually investigates innovative technologies to help customers realize the best value from the services they receive.  Current initiatives include photovoltaic offerings, wind energy, energy and water efficient equipment, and electric vehicle charging.

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The fall drawdown of Lake Zumbro is scheduled to begin on October 23^rd. The drawdown is necessary for planned maintenance at the hydroelectric facility and shoreline restoration work.  The public should be aware that the drawdown planned for this fall will be substantially greater than normal.  A typical fall drawdown is less than two feet; whereas this year a four foot drawdown will be attempted.  These plans are subject to change depending on rainfall and resulting runoff.  RPU’s drawdown plan is as follows:

• Sunday, October 23^rd start the 4 foot drawdown.
  • RPU will plan to draw the lake level down 0.5 feet per day while maintaining a minimum flow of 70 cfs.
• Monday, October 31^st the lake level will be held at 910.5 MSL (4.0 feet below the spillway) for 5 weeks.
• Monday, December 3^rd start to refill the lake level until it reaches the winter pool elevation of 913.0 MSL.

The drawdown plan is subject to change depending on weather conditions.

During the months of December through March, Rochester Public Utilities (RPU) will attempt to maintain the lake level at the winter pool of 913.0 MSL.

Real-time lake level information, along with Lake Zumbro hydro updates are available on the RPU web site (www.rpu.org). For additional information regarding the Zumbro Hydroelectric Facility please contact Tony Benson at (507) 280-1534.

Tips for lake ice safety:

Be extremely careful during winter activities that involve Lake Zumbro such as ice fishing, snowmobiling or just walking out on the frozen lake.

Watch the weather and river flow conditions.

Ice thickness and condition can vary greatly. Be very cautious.

Look out for ice heaves and exposed logs and snags.

Be cautious in the vicinity of the dam. De-icing equipment has been installed along the upstream face of the dam resulting in open water and/or thin ice.

Do not proceed past the warning signs and buoys.

About Rochester Public Utilities

As the municipal utility of Rochester, Minn., for more than 110 years, RPU provides high-quality and reliable electricity to over 56,000 customers.  Water customers number more than 40,000.  RPU continually investigates innovative technologies to help customers realize the best value from the services they receive.  Current initiatives include photovoltaic offerings, wind energy, energy and water efficient equipment, and electric vehicle charging.

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The fall drawdown of Lake Zumbro is scheduled to begin on October 31^st. The drawdown is necessary for planned maintenance and shoreline restoration work.  The public should be aware that the drawdown planned for this fall will be substantially greater than normal.  A typical fall drawdown is less than two feet; whereas this year a four foot drawdown will be attempted.  These plans are subject to change depending on rainfall and resulting runoff.  RPU’s drawdown plan is as follows:

• Sunday, October 31^st start the 4 foot drawdown.
  • RPU will plan to draw the lake level down 0.5 feet per day while maintaining a minimum flow of 70 cfs.
• Monday, November 8^th the lake level will be held at 910.5 MSL (4.0 feet below the spillway) for 2 weeks.
• Monday, November 22^nd start to refill the lake level until it reaches the winter pool elevation of 913.0 MSL.

The drawdown plan is subject to change depending on weather conditions.

During the months of November through March, Rochester Public Utilities (RPU) will attempt to maintain the lake level at the winter pool of 913.0 MSL.

Real-time lake level information, along with Lake Zumbro hydro updates are available on the RPU web site (www.rpu.org). For additional information regarding the Zumbro Hydroelectric Facility please contact Tony Benson at (507) 280-1534.

Tips for lake ice safety:

Be extremely careful during winter activities that involve Lake Zumbro such as ice fishing, snowmobiling or just walking out on the frozen lake.

Watch the weather and river flow conditions.

Ice thickness and condition can vary greatly. Be very cautious.

Look out for ice heaves and exposed logs and snags.

Be cautious in the vicinity of the dam. De-icing equipment has been installed along the upstream face of the dam resulting in open water and/or thin ice.

Do not proceed past the warning signs and buoys.

About Rochester Public Utilities

As the municipal utility of Rochester, Minn., for more than 110 years, RPU provides high-quality and reliable electricity to over 47,000 customers.  Water customers number more than 36,000.  RPU continually investigates innovative technologies to help customers realize the best value from the services they receive.  Current initiatives include fuel cell research, wind power, and photovoltaic offerings.

About Rochester Public Utilities

As the municipal utility of Rochester, Minn., for more than 110 years, RPU provides high-quality and reliable electricity to over 56,000 customers.  Water customers number more than 40,000.  RPU continually investigates innovative technologies to help customers realize the best value from the services they receive.  Current initiatives include photovoltaic offerings, wind energy, energy and water efficient equipment, and electric vehicle charging.

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The fall drawdown of Lake Zumbro is scheduled to begin on November 1^st. The drawdown is necessary for planned maintenance and shoreline restoration work.  The public should be aware that the drawdown planned for this fall will be substantially greater than normal.  A typical fall drawdown is less than two feet; whereas this year a four foot drawdown will be attempted.  These plans are subject to change depending on rainfall and resulting runoff.  RPU’s drawdown plan is as follows:

• Sunday, November 1^st start the 4 foot drawdown.
  • RPU will plan to draw the lake level down 0.5 feet per day while maintaining a minimum flow of 70 cfs.
• Monday, November 9^th the lake level will be held at 910.5 MSL (4.0 feet below the spillway) for 2 weeks.
• Monday, November 23^rd start to refill the lake level until it reaches the winter pool elevation of 913.0 MSL.

The drawdown plan is subject to change depending on weather conditions.

During the months of November through March, Rochester Public Utilities (RPU) will attempt to maintain the lake level at the winter pool of 913.0 MSL.

Real-time lake level information, along with Lake Zumbro hydro updates are available on the RPU web site (www.rpu.org). For additional information regarding the Zumbro Hydroelectric Facility please contact Tony Benson at (507) 280-1534.

Tips for lake ice safety:

Be extremely careful during winter activities that involve Lake Zumbro such as ice fishing, snowmobiling or just walking out on the frozen lake.

Watch the weather and river flow conditions.

Ice thickness and condition can vary greatly. Be very cautious.

Look out for ice heaves and exposed logs and snags.

Be cautious in the vicinity of the dam. De-icing equipment has been installed along the upstream face of the dam resulting in open water and/or thin ice.

Do not proceed past the warning signs and buoys.

About Rochester Public Utilities

As the municipal utility of Rochester, Minn., for more than 110 years, RPU provides high-quality and reliable electricity to over 50,000 customers. Water customers number more than 40,000. RPU continually investigates innovative technologies to help customers realize the best value from the services they receive. Current initiatives include fuel cell research, wind power, and photovoltaic offerings.

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