Skip to main content

Metropolitan Water Reclamation District of Greater Chicago

WHO: The Metropolitan Water Reclamation District of Greater Chicago (MWRD) Board of Commissioners and staff, Cook County Forest Preserve District leaders and City of Palos Heights officials

WHAT: Officials will gather at Arrowhead Lake in the Cook County Forest Preserves to celebrate the completion of a flood control project that protects Palos Heights residents by removing 70 structures from the 100-year flood plain.

WHERE: Arrowhead Lake, 7016 W. 135th St., in the Forest Pre- serves of Cook County, in parking lot closest to south end of lake.

WHEN: Friday, May 13, 2022, at 11:30 a.m. (This event was originally set for May 3 but was rained out)

A ribbon cutting ceremony will be held to commemorate the completion of the MWRD’s Arrowhead Lake Flood Control Project. The work at Arrowhead Lake increases floodwater storage by more than 13 million gallons in the Forest Preserves of Cook County by replacing an existing dam and raising an existing bicycle trail along the lake in unincorporated Cook County near Palos Heights.Through these efforts, the MWRD removed 70 structures from the Federal Emergency Management Agency (FEMA) Zone A flood plain in Palos Heights. On March 11, 2022, the FEMA Flood Insurance Rate Map was officially revised, providing protection, peace of mind and cost savings for current and future residents of Palos Heights. In addition to removing structures from the 100-year flood plain, this collaborative project restored and improved forest preserve amenities at Arrowhead Lake.

Lake Arrowhead Ribbon Cutting.pdf


Established in 1889, the Metropolitan Water Reclamation District of Greater Chicago (MWRD) is an award-winning, special purpose government agency responsible for wastewater treatment and stormwater management in Cook County, Illinois.


For more information: