Alpensee Wetland

Chelan County PUD owns property adjacent to the Leavenworth substation (see map). Stormwater that is collected upstream flows through an open ditch on this property and through a wetland. The PUD is aware that the wetland has caused issues for some neighboring properties. The recording of this wetland limits the PUD's ability to actively change the function of the property, however, as a good neighbor, we are working to find a long-term solution to the flooding issues. 

The PUD hosted a neighborhood meeting in February to provide more information and hear input from neighboring property owners. Since that time, PUD staff has been working with consultants on a feasibility study and analysis of capital improvement alternatives.

June 2018 Status Update:

PUD staff and consultants analyzed alternatives to explore potential improvements for the wetland on PUD property. This study revealed that improvements on the PUD’s property would not address the larger stormwater issues associated with the Alpensee drainage and possibly could create bigger problems downstream. Improvements to address larger stormwater issues are beyond the PUD’s responsibility as a property owner. The PUD met with Chelan County and the City of Leavenworth to review alternatives for a collaborative solution, but at this time, there are no scheduled system improvements within the city. The PUD will continue to work with the City of Leavenworth to collaborate on a long-term solution. 

As a result of this effort, the PUD’s preferred approach is to begin pursuing a maintenance program. Previously, a permit for this type of work was not considered obtainable. However, the results of this alternatives analysis help to justify this approach. The tentative plan is to begin the permitting process with the environmental agencies in 2018 and begin maintenance work in 2019. This would not be an improvement to the stormwater system, but an endeavor to stop wetland growth on PUD property. Chelan PUD will continue to support the City of Leavenworth in its stormwater capital improvement plan and will collaborate with the City if the PUD’s property ever becomes advantageous in the implementation of the plan.  

The PUD will provide another update once a decision has been made on the proposed maintenance program.  

We will communicate mostly via email. If we don't have your email address and you want to stay engaged, please send your email address to

This website will be kept up to date with the most current information.
Questions? Contact Project Manager, or call 509-661-4144
Alpensee Wetland graphic_2018-03-07