The ditch was designed to drain water from North Shore Drive, which has been as high as 8 or 9 inches this very rainy week.
But, the slope from North Shore Drive to the lake was so slight that the ditch idea didn’t work.
So, on Thursday morning, about a six inch hose was run Parallel to the ditch from the area to be drained near North Shore Drive to Crystal Lake.
I don’t know how long the pump had been working when I arrived, but the flow was significant.
Consultant Gary Schaefer, who advises both the city and park district on matters watershed, pointed out that the quantity and quality of the flow of water to Crystal Lake would improve if McHenry County College were granted permission to build its baseball stadium and cover 50% of its watershed property.
You can see from the photos that the flow is up substantially from this spring.
But, the water is not nearly as clear as it was on March 22nd.
The combination of the rain run-off from the watershed and the pumping has the lake as high as I have ever seen it and the water is running over the little dam into Cress Creek as fast as I have ever seen it.
So, Crystal Lake can handle the quantity.
The question now seems to come down to quality.
= = = = =
In the top photo you can see not only the hose, but a metal protective device around the storm sewer outlet–something like a window well, in fact, it may be a large window well. The water is calmer inside the well. I was told it was installed to keep debris from Crystal Lake from clogging up the storm sewer.
Below right is the hose snaking to the lake. Note that there is little water in the ditch.
Near the bottom are two shots of the little dam over which excess water flows out of Crystal Lake into Cress Creek. The one on top is from Thursday. The one below is from July 22, 2007.
At the bottom this photo explanation section, is a picture of the hose running north from the culverts toward North Shore Drive.