For Release: 01/28/2016

Petenwell and Castle Rock Flowages Begin Annual Drawdowns in Advance of Spring Runoff

Necedah, Wis. – Wisconsin River Power Company (WRPC) will begin drawing down the Petenwell and Castle Rock flowages on the Wisconsin River starting in February to prepare for the spring runoff of melting snow in Northern Wisconsin. Drawdowns will be gradual and minimized as much as possible. Drawdown levels up to (5.5) five and one half feet at Petenwell and (6.5) six and one half feet at Castle Rock flowages could occur if predictions from the National Weather Service indicate a need to.

The Castle Rock reservoir drawdown will begin on February 1, 2016 and the Petenwell reservoir drawdown will begin February 10, 2016. Both drawdowns are anticipated to be completed sometime in March 2016 when the snow melt typically begins to refill the reservoirs.

WRPC urges recreational enthusiasts to beware of the dangers of shifting and unstable ice due to any type of flowage drawdowns.

Current river flow and reservoir elevations can be found on the WRPC Web site: for up-to-date information.

For More Information, Contact:

  • Joseph Sukana, Supervisor
    Regional Generation, South
    (608) 565-2500