About Eagle Spring Lake

Eagle Spring Lake is a 279-acre mesotrophic impoundment located in Waukesha County, WI. It has a maximum depth of 8 feet and its mean depth is 4 feet.  The waterbody is formed on the Mukwonago River Flowage by dam impoundments. 

Boating and Swimming Regulations 
  • All boating traffic must go counterclockwise during skiing hours!
  • There is Slow-no-Wake between 7:30 p.m. or sunset whichever is earlier and sunrise or 8:30 am whichever is later.
  • Slow-no-Wake means the speed at which a boat moves as slowly as possible while still maintaining steerage.
  • No person shall tow or be towed behind a motorboat unless the person being towed is wearing a life jacket approved by the USCG (ski-vest).
  • No more than three (3) persons, on skis or surf boards, may be towed at one time.
  • No person shall swim more than 100 feet from shore without being accompanied by an escort boat.
  • All piers and rafts shall be marked by re reflectors of not less than 3-inches in diameter placed not more than 3-feet from the outer limits of any pier.
  • ESLMD Directional Map, Rules and Regulations

Alerts

Harvesting/Aquatic Plant Update

A situation that may affect some shorelines is that harvester operators must maintain a minimum of 10' clearance of any and all personal property, such as piers, boats/boatlifts, swim platforms, canoes and kayaks.  This is a safety policy to reduce any possible damage that may occur from the harvester being veered off course due to weather conditions, boat wakes, etc.

You, as a resident do have the right cut and gather vegetation around your property to keep your area clear.  The DNR has issued Eagle Spring Lake with a 'Mechanical Aquatic Plant Control Permit' allowing us to remove up to 142.58 acres of plants. This permit also is very specific on what we do and how we do it.  To read the specifics of the lake's permit, click here: Mechanical Aquatic Plant Control Permit

Early in the spring of 2025 we chemically treated Jack's Bay with liquid 2, 4-D to help control the invasive Eurasian Water Milfoil (EWM).  We also treated Pickeral Bay with ProcellaCor in efforts to control the EWM that that bay.  In June it appeared that the chemical treatments may have been successful in both of those bays and we were getting caught up to speed with harvesting out on other areas of the lake.  In July the lake looked as if it was reasonably under control and we would expect late summer Eelgrass going to seed as out next plant of contention.   We were correct and maybe under estimated the punch the Eelgrass was going to have on the lake.   It is August and the Eelgrass is so thicker than ever seen on the lake and it is making any type of recreating difficult.  We have put out an Eelgrass advisory to be aware that your motor could clog up and malfunction/overheat.  You may want to consider not being on the lake.  We are aware of the situation and are attempting to get the harvester out there and picking up all the floaters we can.  It also appears that EWM is coming back already in Jack’s Bay.

The Starry Stonewort remains in Pickeral Bay and is back this year and has grown at least 3 times the size of last year.  We are still asking those who can, to please stay out of Pickeral Bay and if you have to enter, be sure to reverse you motor before leaving.  Starry Stonewort is very aggressive and has not been a plant that can be completely destroyed.

Thank you for your patience as we try to return the lake to an acceptable condition.

Eagle Spring Lake Grid Map

In the event you would need to report an emergency or an issue in a specific area of the lake, or just want to point out your favorite fishing spot, a grid map of the lake has been created.  Call 911 to report an emergency, then contact: chair@eaglespringlake.us and admin@eaglespringlake.us

Eagle Spring Lake Grid Map