Wonder Lake Dredging
Dredging in White Oaks Bay
Lake users are encouraged be to extra cautious to avoid pipeline.
No-wake boating is required at all times within close proximity of the dredging areas
470,000 cubic yards of sediment will be removed from the lake...
The removed sediment will be enough to cover a football field 26 stories high
Dredging Wonder Lake will create an additional 100 acres of deeper, cleaner water
Photos taken by Bob Schell
Wonder Lake SDF — November 13, 2016
Wonder Lake SDF — November 13, 2016

Winter lake user’s are reminded of the presence of dredge pipeline being stored for the winter in the north half of West Bay, and are strongly encouraged to avoid this portion of the lake.   A map depicting the approximate winter 2016 / 2017 location of the dredge pipeline is found here. LINK   Lake user’s are also reminded of the presence of the rip-rap “collars” around Wickline and O’Brien Shoals.


The dredging contractor is making plans to re-mobilize for the 2017 dredging season around the first week of April. The working plan is to first complete the remaining dredging of O’Brien Shoals and Wickline Island, before moving to the South Bay prior to the Memorial Day Holiday, if not sooner. Lake user’s need to be aware of rapidly changing lake conditions as the dredging contractor begins to re-deploy the sediment pipeline, booster pumps, and other dredging-related equipment. Avoiding those areas of the lake is the best bet, when possible. As in past years, the closest the dredging will come to any shoreline in the dredging zones is 20 feet. If you are in those areas, and your pier extends no more than 20 feet from shore, you should be fine. If your pier is longer than 20 feet, it will need to be temporarily removed when the dredge gets to your area, or the extent of dredging conducted in that area will have to be reduced.



WELCOME to the Master Property Owners Association (MPOA) in Wonder Lake, Illinois 60097. The MPOA owns and manages Wonder Lake, a private 830 acre recreational lake located northwest of Chicago. The MPOA office is located at 7602 Hancock Drive, at the northwest corner of Hancock Drive and E. Wonder Lake Road, roughly two miles north of IL Route 120. Do you have a question about the Lake, or need information about the Wonder Lake area? E-mail: office@wlmpoa.org, Phone: (815) 653-1000


 NEW  LATEST UPDATE → Lake Managers Report

• Read about the History of Wonder Lake's Restoration
• EROSION CONTROL BARRIERS: Read 2012 Notice to Lake Users


The Wonder Lake Water Ski Show Team won the national team title at the 42nd Indmar Marine Engines Division 1 Show Ski National Championships, presented by Polk County Tourism and Sports Marketing, Aug. 12-14, on the Rock River at Traxler Park in Janesville, Wis. Wonder Lake earned high-scoring awards for dock and equipment personnel, pick-up boat crews, towboat driving, showmanship, sound crew total and overall show on its way to tallying a grand total 1,957.94 points and winning its first national title since 2010 and fifth in the history of the event. Read More >


You can take boat safety classes online, at anytime: Boater Exam.com, and Boat-Ed.com are fast and easy and certification cost is $29.95. Persons at least 12 years of age and less than 18 years, without an Adult are required to have a certificate.


Lake users are reminded that MPOA Lake Use Decals MUST be permanently affixed to the watercraft / snowmobile / ATV  to which they are registered, and that they are NOT transferable. The Wonder Lake Police Department Marine Patrol is provided with a list of all MPOA Decal registrants, and the specific type and description of the unit each decal number was issued to. Failure to have your MPOA decal permanently affixed is a ticketable offense.

  • Zero Horsepower (canoe,kayak,rowboat,pedal boat) $10.00
  • 1-39 Horsepower $20.00
  • Over 40 Horsepower and ALL PWC $40.00
  • Winter- $5.00


• Senate Bill 3434 allows for the seizure of a watercraft used in the commission of certain offenses related to operating under the influence. The new rules bring penalties for boating under the influence more in line with those for operating a motor vehicle while impaired by drugs or alcohol. 

• Senate Bill 3433 requires all persons born after Jan. 1, 1998 to take and pass a boating safety course validated by the Illinois Department of Natural Resources and hold a valid boating safety certificate before they can operate a motorboat with an engine over 10 horsepower.

• Senate Bill 2731, mandates that the operator of any watercraft that is towing a person, such as a water skier or tuber, must display a bright orange flag measuring not less than 12 inches per side. The flag must be displayed from the time the person to be towed leaves the boat until that person returns to the boat at the conclusion of the activity. 
Under the law, flying the flag for purposes other than towing is prohibited, so be sure to only display the flag when towing.