spillway repair and drawing down the lake
In order to perform necessary repairs of our concrete spillway, the lake will temporarily be lowered approximately three feet, beginning Monday October 2 or soon thereafter. The Indian Lake Board of Directors requests that all watercraft be removed from the lake prior to 6 PM on Sunday October 1. If you need assistance removing your boat, call Jeff VanTreese at 627-0738 on or before Friday September 29.
This may provide a good chance for residents to work on seawalls, docks and shoreline stabilization projects.
What are the repairs about?
Over time, the concrete wingwalls of our spillway have deteriorated due to weathering. Recent IDNR inspections have cited this and the wingwalls must be repaired. A similar repair was done in the late seventies. The spalling concrete will be mechanically removed, and a new surface layer of shotcrete applied. The firm contracted to do the project came with strong recommendations from the City of Indianapolis DPW, and provided the most competitive bid of the three companies who bid the job.
What if I don't remove my boat?
Removing boats is recommended because there is no guarantee on how much the lake will be lowered or for how long. The Indian Lake Improvement Association or its members will not be liable for any damage or injuries that may occur as a result of not removing watercraft by the specified date.
When will the lake level be restored?
If the weather cooperates and the repair work goes as planned, the project will be completed and the lake level restored by mid to late October. If there is a storm, the work will be halted and the lake will need to be drawn down again before work can resume.
posted by rumreich @ 10:52 AM
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SEPT 30 UPDATE
On Saturday Sept 30, board members successfully opened the sluice gate approximately 1/2 inch, then closed it again. The procedure was progressively repeated, with openings of 1 inch, 2 inches, and 5 inches. The use of the sluice gate will save $12,000 in siphoning expenses.
OCT 2 UPDATE
On Monday Oct 2, Trotter Construction was notified that the sluice gate would be used for drawing down the lake, that watercaft had been removed and that the repair work could begin at any time.
Trotter requested that ILIA begin drawing down the lake on Sunday Oct 8, at the rate of 1 foot per day.
OCT 9 UPDATE
At noon on Sunday Oct 8, the sluice gate was opened about 5 inches (12 turns). At 8 AM on Monday Oct 9, the lake level was down sixteen inches, dropping 0.8 inches per hour. This is slightly better than the 0.5 inch per hour rate that we anticipated.
Trotter Construction now expects to start work on Monday Oct 16, so we will close the gate today and reopen it on Friday or Saturday.
OCT 19 UPDATE
Heavy rains and high water have delayed the project. Work is expected to begin on Monday Oct 23.
OCT 26 UPDATE
Prep work began on Monday Oct 23. Rains on Thurs & Fri will cause minor delays. Concrete spraying will begin on or about Monday Oct 30.
NOV 1 UPDATE
Prep work is nearing completion and spraying of concrete should begin today or tomorrow. No rain is in the forecast through the weekend, so the outlook is finally good!
NOV 27 UPDATE
Spillway repairs have been completed! The sluice gate was closed on Saturday Nov 25 and the lake level will return to normal pool over the next few days.
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