Green Oaks Study Area

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  • November 7, 2018:  The Public Works Department completed constructed of a shallow swale on the City’s property, south of Green Oaks Drive and north of the pedestrian path to Lippold Park. The purpose of this swale is to provide an overflow for water that currently gets trapped in a pocketed area.  
  • February 7, 2018: City staff met with residents of the Green Oaks and Woodland Drive Areas for a final check-in. View the presentation slides.  
  • January 22, 2018: Letters were mailed to all the residents in the study area inviting them to the open house.  
  • August 14, 2017: City staff met with property owners. Meeting minutes are here.  
  • July 31, 2017: Letters were mailed to all residents in the study area inviting them to the open house.
  • July 18, 2017: City council presentation to review the stakeholder engagement process to review and refine improvements to reduce the risk of flooding.
  • June/July 2017: City experienced successive and excessive rain events leading to the total rainfall for June and July of almost 20 inches, over double the normal average.
  • 2015-2016: Further analysis was completed by the City’s stormwater consultant to evaluate options which would reduce the flooding of the roadway on Green Oaks Drive.
  • October 2014: Wetland delineation report was approved by the Army Corps of Engineers.
  • July 2014: Wetland delineation report was completed for the City-owned property west of this study area. 
  • December 2013: Detailed drain tile survey was completed for the City-owned property west of this study area.
  • 2013: The City’s stormwater consultant completed additional analysis of the recommended alternatives outlined in the approved 2009 flooding study.
  • March 2009: A flooding study was completed which helped determine the causes of the flooding and conceptual solutions.
  • August 2007: Successive rain events led to Crystal Lake receiving between 11 and 12 inches of rainfall which produced the highest lake level ever recorded and areas around the lake experienced significant flooding.

Green Oaks Study Area

  • This area was annexed into the City in 1929. Many of these homes were initially built in the 1920s and 1930s as summer cottages and three-season homes.
  • As the demand for year-round homes in Crystal Lake grew, these homes were converted to year-round residences.
  • Flooding in this area occurs due to pocketed areas (low spots with no outlet) which may or may not receive stormwater from adjacent roadways and the duration of the flooding (length of standing water) varies by location.
  • Road and parkway flooding also occurs which subsides after the event.
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