Town of Delavan Lake Projects (updated: 9/7/18)
Town Park Project I. PHASE I
Hwy F to South Shore Drive(Upstream of the Town of Delavan Community Park). Ditch Improvements. Recommended in the Delavan Lake Watershed Implementation Plan.
Work to include: Vegetated Bio-swale, Cobblestone infiltration Channel, Energy Dissipation, Native Wetland Plantings. Vegetated infiltration swale with 12’ to 18” tall (un-mowed) perennial grass cover with taller native wetland plantings closer to lake shore; approx. 40’ x 50’ wetland Bank Stabilization, Riprap Check Dams, Energy Dissipation Energy dissipation area approx. 15’ by 20’ , 8” to 16” rounded glacial rock
Project Status: Lake Committee and Town Board has approved. Current schedule as follows:
July: Permit Document
August: 2018 Design Complete
August: Advertise for Bids
September: Lake Committee Approval
September: Town Board Approval
September: Notice to Proceed to Contractor
October: Construction Starts
November: Construction Complete
Schedule Note: Some final landscape restoration/seeding may need to be wrapped up in 2019 depending on October/November weather.
TOWN OF DELAVAN AND DELAVAN LAKE SANITARY DISTRICT (DLSD) PROJECTS
Mound Road Ponds Project (updated 8-12-18)
The Town of Delavan and Delavan Lake Sanitary District have agree to a Test Project for 2018 to apply Muck Reduction Pellets to the ponds in the Mound Road Watershed. Project Details The test program (Mound Road Ponds) would use the pellets in place of dredging the ponds. It is estimated that the dredging of the ponds is estimate to cost over a half million dollars compared to an estimated cost of thirty thousand dollars.
The project is expected to start in May when the water temperature reaches 60 degree. Using the water depth measurement from different water depths (number of samples dependent on pond chosen) four composite samples would be taken from each of the ponds. For example, in the east pond we would take samples from the 1-3’ depth range and samples from the 3-5’depth range. We would then mix this collected sediment from given depth-ranges to form an aggregate or composite sample. All samples sites would be plotted using GPS for re-sampling. An initial (2) samples would be taken prior to project start-up and a final (2) samples taken at least 4 weeks following the final pellet application in late Sept. Each composite sample would be laboratory-tested for: total solids, total volatile solids, organic carbon, total nitrogen and total phosphorus.
Daily precipitation is monitored by the Delavan Sanitary District and these measures would also be used to judge efficacy. Pellets would be applied each month May through September for total of 5 applications. Final Report on the results will be available November 2018.
Inlet Channel Program
In addition, a second test project the “Inlet Channel Program “ (which is the Delavan Lake Inlet east of the Hwy 50 Bridge) to use the same program as above and apply pellets to the Inlet Channel. The total cost for the two projects (Mound Road Ponds and the Inlet Channel Test Program) would be approx. $28,000.00. The total cost would be bored on a 50/50 basis by The Town of Delavan and Delavan Lake Sanitary District. After a review of the two project test results the project would then be reconsidered for renewal in 2019. Monthly results will be reported on this site.
Brown's Channel Pellet Program for 2018 (updated 9/7/18)
The Pellet program was started on May 16 after the water temperature reached 55 degree and will continue to September for a total of five applications of pellets in the channel and the bay. Below are reports for 2018 and 3 year 2015 to 2017 Report. The pellet programs reduces the sediment (Muck) to keep water depth and eliminate the need to dredge the channel and the bay. See attached PREVIOUS YEARS report , 2018 report.
Brown's Channel Water Test and AQUAFIX Review June 2018
Delavan Lake Sanitary District (DLSD) Projects
Brown's Creek Project (2/9/2018)
DLSD submitted to DNR. Brown’s Creek Planning Study. (south of South Shore Dr) The study would look at the following creek Improvement: Parking, Walking paths, Observation Area, Removal of invasive plant species, Bank stabilization and Tree trimming to encourage non-invasive plant grown. Awaiting information on what the DNR will approve. Grant funds received from DNR .
Study was completed in 2017 and the final plan can be accessed on the DLSD’s website or paper copies are available at the DLSD office or the Town Hall.