By Tracy Ouellette
The East Troy Village Board received an update on the creek restoration that is ongoing since the removal of the East Troy Dam.
Village Engineer Tim Lynch, of Lynch and Associates, updated the board on the progress and needed work to address the recent storm damage.
In a memo to the board, Lynch wrote, the storms on Sept. 11 and 12 brought about 7-inches of rainfall, recorded at the treatment plant.
“The subsequent runoff and stream flows caused some damage to the stream restoration that is in an early stage of restoration,” Lynch wrote. “The stream channel alignment remained static and most design features are performing as expected. The scale of this event is of a much larger magnitude than can be expected, however most of the slopes and channel bed and banks are intact and stable.”
Lynch told the board Monday night that the storm was a “good and bad thing” in that the work already done was tested and about 90% of it held, but it also showed them where some work needs to be done.
Among work that needs to be done includes repairing two riffles that were damaged because of the high water flows. For long-term stability, the riffles will need larger stone and wider wings embedded into the banks to protect against future storms and high water flows.
While the stream bank areas performed well in general, according to the memo. Areas of erosion have also been identified as needing attention.
For the full story, see the print edition of the East Troy Times/News.
