Forest Glen, Greenwood Could Get Flood Reduction Improvements

The Forest Glen improvements would add about $685,000 to the estimated $2.9 million it would cost for flood reduction improvements in Northwest Winnetka.

Residents in the Forest Glen neighborhood may soon get relief from flood-related issues after Winnetka trustees directed staff to add Forest Glen in the engineering designs for flood reduction improvements in Northwest Winnetka. 

“This absolutely dovetails into the Tower Road and Greenwood project,” Trustee Richard Kate said at a recent village council study session. “The bottom line is there is no rational reason not to do it.” 

The Northwest Winnetka Flood Reduction Improvements include adding new storm sewers for the Greenwood Avenue area to withstand 4.47 inches of downpour in two hours. 

The Forest Glen improvements would add about $685,000 to the estimated $2.9 million it would cost for flood reduction improvements in Northwest Winnetka, which was already included in the village's 2012-2013 budget, village documents show. 

The Northwest Winnetka improvements are scheduled for engineering in 2012 with the intent for construction to begin in 2013. 

Christopher B. Burke Engineering, which has worked with the village on past storm sewer related projects, identified the following conditions in the Forest Glen area: 

  1. The Forest Glen storm sewer system has less than a five-year capacity. For storm events grater than or equal to the magnitude of a five-year return interval, the system will surcharge and storm water ponding will occur. 
  2. When the capacity of the storm sewer system along Forest Glen Drive North is exceeded, the surcharged flow is directed towards the homes between Forest Glen Drive North and Forest Glen Drive South
  3. Ponding occurs at the low spots along Forest Glen Drive East for storm events equal to or greater than a five-year frequency. There is about 0.6 feet of depth between the low spot in the road and the overtopping elevation between the houses on the west side of the street. 

The Rosemont-based engineering firm recommends the village install larger storm sewers along Forest Glen Drive and increase the capacity of Tower Road storm sewer to move the additional flow from the Forest Glen area west to the proposed Northwest Winnetka Improvements. 

Related Articles:

  • Winnetka Considers a $34.6 Million Stormwater Tunnel

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Correction: A previous version of this article incorrectly said the Village Council was still considering adding Forest Glen in the proposed Northwest Winnetka Improvements. The article has been updated to reflect that the Village Council has directed staff to include Forest Glen in the improvements. 

karen Kennedy September 18, 2012 at 05:17 AM
My parents have lived there for 54 years, and they have always gotten a little water in their basement, since I was a kid. And they are at the low end (west) of Forest Glen. I am sorry for your loss.
karen Kennedy September 18, 2012 at 05:19 AM
Thank you for that non-clairification. Was that in Winnetka? Or a stock shot? What address is that photo?
Chi-an Chang September 18, 2012 at 09:36 PM
Hi Readers, The photos is a stock photo from the July 2011 storms, unfortunately it was taken by a freelancer so I am not able to provide a specific location. The goal of the photo was to show how some parts of Winnetka was affected in last year's storm.
karen Kennedy May 21, 2013 at 06:09 PM
The village is en route to create a local property tax based on the % of land you use on your property, including things like your house, driveway, apparently anything that is non permeable, able to absorb rain. It sound like a vary complicated calclation which may make some consultants, and real estate tax lawyers a lot of money. So a huge estate with lots of land, I imagine would get a small stormwater tax, and a moderate house on a small lot, would be taxed much higher. It seems to me it would be easier and reflect Winnetka's vested interest in Lake Michigan (which we pump for water by our own town plant) to tax water use as a means of funding comprehensive repairs of clear faults in the village storm water system. That was people who say vigorously rely on inground grass and garden sprinklers or pools, would pay more for our precious and declining lake water. Both stormwater and water systems are run by the town. It seems like a much simpler way to fix village problems, while valuing the luxury of Lake Michigan water.
karen Kennedy May 21, 2013 at 06:10 PM
Please check my comment on the proposed local property tax to pay for only some of the town's flawed stormwater system.


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