Carp barriers will be built to protect 2 lakes in Linwood
Martin Lake and Typo Lake in Linwood Township are now set to get carp barriers installed. Their purpose is to prevent seasonal movements of carp between Martin Lake and the much shallower Typo Lake where they spawn.
At the Tuesday, May 8 Linwood Town Board meeting, supervisors agreed that the township will assume ownership of the barriers and responsibilities for the inspection and periodic cleaning of debris. The barriers are to be installed at four points in the stream between the lakes.
Action took place after a presentation by Jamie Schurbon, water resource specialist with the Anoka Conservation District. About 20 residents from Martin Lake attended as a cheering section.
Shurbon’s presentation included a map showing the southern end of Typo Lake, the north inlet of Martin Lake at Typo Creek Drive, the south inlet of Martin Lake, which drains Island Lake, and the Martin Lake outlet. Installation of the barriers is scheduled for 2012-2013.
Design of each barrier is suited to the specific location. Cleaning requirements are related to the design. Horizontal screens will block the outlet to Typo Lake. At Typo Creek Drive, three of the five-foot culverts will have vertical risers with grated covers, and perforations for water to pass through them.
Pivoting bars will be added to the culvert at the south inlet to Martin Lake. At the Martin Lake outlet, there will be two sets of bars — a vertical pivoting set which allows debris to pass, and a horizontal set, pitched slightly downward on the downstream edge to prevent fish from swimming downstream.
Explanations were necessary so the board would understand what it was committing township employees and volunteers to complete. The pictures of both barrier design and procedures for cleaning them were explained, as well as suggested frequency. Shurbon had estimates for inspection and cleaning times for each of the barriers in a best, worst, and most likely scenario.
Seasonal times vary due to water levels and debris. Most of the cleaning will be during summer, from mid-May to the end of September.
In the beginning, Shurbon assumed there might be a learning curve as staff learned and had some volunteer assistance. Inspections are likely to take about 1.5 hours per week in the spring and an hour a week in the summer and fall.
Barrier cleaning was estimated to average about 30 minutes. The total annual time for cleaning, inspections, and operations will likely be under 40 hours. In a best case this might be about 28 hours, with a worst case estimate of 60 hours a year.
Supervisors approved a resolution assuming ownership and maintenance of the carp barriers by a vote of 5-0.
Supervisor Phil Osterhus suggested maintenance employees could dedicate up to four hours weekly to the inspection and cleaning. Volunteers might be able to help township workers.
The Sunrise River Water Management Organization secured grants to help pay for the barriers. Shurbon urged installation soon while the grants are in effect, so if corrections are needed, funds will be available.
By a 5-0 vote, the board authorized Shurbon to apply for the necessary permits.
Supervisors accepted the bid from Knife River Corporation to provide services and materials for the 2012 Street Maintenance Project. Street overlays are planned on 201st Place and 202nd Lane, west of Viking Blvd., and 234th Ave. from Cornell Street to Ryan Lake Drive. The surface from Sunrise Road from Ryan Lake Drive to Fawn Lake Drive will be milled and paved.
There were six bids. Knife River’s was the low bid, at $260,556.94. The estimate for the work was $277,000. The company has completed work in the township before. The recommendation to accept the bid came from the road and bridge committee.
In a memorandum, Engineer Craig Jochum reported a site visit of 227th Lane NE, where the township right-of-way has been cleared. Jochum suggested shallow ponds in areas along the street, in lieu of bituminous curb.
This would increase the cost of the street repairs. The road is to be surfaced with Class-5 gravel.
Osterhus wants to determine how much savings in grading costs results by using calcium chloride on the graveled streets. Use of the chemical keeps the surface sold and there is less dust. There appears to be less grading on these roads, but Osterhus wants some solid numbers. It costs $1,250 to put the calcium chloride on one mile of road.
Quotes were received from two companies to provide cameras for surveillance at Four Seasons Park. There have been repeated incidents of extensive vandalism in the park.
There is a wide difference in the quotes to provide cameras on the north and south of the pole barn, on the warming house, and outside the recycling shed. Supervisors plan to check on other features and services available before a final purchase decision is made.
Great River Update
Great River Energy met with the East Bethel Planning Commission on the evening of the Linwood meeting. Peter Schaub, Great River representative, sent a memo to the township that he will meet again with township officials when there is concrete information about the high voltage power line route to the Martin Lake substation.
It seems likely the line will enter Linwood Township on Durant St., then go east along Fawn Lake Drive, then south along Sunset Road, to CR-26, then west to Typo Creek Drive.
Two Boy Scouts have planned Eagle Scout projects for the Linwood Community and School Forest
Brandon Summers is planning trail signs and a bench for the park. Jared Dulluhn built 35 field boxes and donated them to the Forest for students to use while taking notes or drawing while in the forest.
Town Board Chair Mike Parker reported a logo contest for the park. Six Linwood students have been selected finalists. Students will vote to determine the winner. The winner will be announced at Linwood Family Fun Day and receive a plaque in recognition.
Vendors can rent spaces for $13 at Broadbent Field for the Saturday flea markets. The most recent Saturday there were six vendors, but enthusiasm about the site and promises to spread the word to other vendors. Rental funds are added to the Family Fun Day Fund.
Supervisor Mike Halliday wants the staff to investigate the difference between the $500 a month for animal control against what is actually spent per month. He observed that the actual costs have been below the amount actually spent.
In other business, the board:
•Approved payment of the May 8 bills at $11,715.94.
•Received comparisons of the cell tower fees received in communities surrounding Linwood from Attorney Randall. This will help determine reasonable lease fees for cell tower space.
•Approved the petty cash report and accepted the financial report for April.
•Approved minutes of the April 24 board meeting.
•Learned 90 people brought animals to the pet clinic. Supervisors are revisiting the township ordinance to address the expiration date for dog licenses, so license lasts a year from the date of issue.
•Learned that the dog recently declared a potentially dangerous dog was euthanized.
•Learned that the township deposited $7000 from the recent recycling day.
•Learned that the Anoka County Conservation District donated bare root trees for recycling day.