Manistee Lake Association Home Page
Manistee Lake Improvement Board Update
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- Written by Seth Phillips
- Category: Home Page
The Manistee Lake Improvement Board held its first meeting of the year on Monday, June 20. The MLIB reviewed the two reports from last year's lake studies on water quality , the state of the fishery and most importantly, the extent of invasive eurasian milfoil. All the reports were very positive with water quality being very good, a healthy fishery with an improving food chain and an expanding growth of native aquatic plants that are critical to the health of our lake.
The Board also discussed this year's milfoil survey which indicated a slight increase in milfoil in the lake but only in a few scattered locations with few plants at each locale. After lengthy discussion about various methods for treatment, including newer even more selective treatment products now available, it was decided that there isn't enough milfoil to make treatment necessary at this time. The Board will review the second weed survey which occurs later this summer to determine if treatment is warranted.
The next meeting of the MLIB is scheduled for Monday August 29, 2022 at 7PM at the Coldsprings Township Hall.
Manistee Lake Level Data Update 8/1/22
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- Written by Seth Phillips
- Category: Home Page
This chart reflects the lake level data we collect updated as of August 1, 2022. Lake level is down 13.5 inches since mid March. We need some rain!
Why Seawalls Are a Lakeshore Problem and What to Do About Them
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- Written by Seth Phillips
- Category: Home Page
A great article from the current issue of the Michigan Lakes and Streams Associations magazine, Michigan Riparian, reprinted with their permission. Now that the ice is breaking up, there is always some shoreline repair work to do. Now is a good time to think about options to soften our shoreline. This article explains why seawalls and hard shorelines are bad for the lake and what better options exist. We have many great resources here in Kalkaska County to help.
BEST MANAGEMENT PRACTICES: MITIGATING HARMFUL IMPACTS OF SEAWALLS
ERIC CALABRO | INLAND LAKES ANALYST, MICHIGAN DEPARTMENT OF ENVIRONMENT,
GREAT LAKES, AND ENERGY; WATER RESOURCES DIVISION
PHOTO CREDIT:
Seawalls and hardened shorelines significantly degrade lakes by reflecting wave energy, eliminating shoreline habitat for
fish and wildlife, promoting runoff of nutrients and pollutants, and degrading water quality. The individual and cumulative impacts of seawalls on our inland lakes have been significant, with the National Lakes Assessment indicating that over 50% of Michigan’s lakes have degraded lake habitat complexity and lakeshore habitat.
Seawalls and hard armoring on inland lake shorelines don’t allow for the absorption and dispersal of wave energy. Because armored shorelines reflect wave energy, they can make erosion worse in other areas. Additionally, hard armoring fragments the land-water interface and results in a loss of habitat complexity. The nearshore zone plays a critical role in the various life cycles of many invertebrates, amphibians, and fish, providing spawning and nursery areas, refuge, and foraging opportunities, as well as other functions. In addition to habitat, healthy littoral zones and shoreline plants stabilize sediment,
reduce turbidity, absorb wave energy, and provide increased ecological integrity. The loss of nearshore littoral habitat has been shown to adversely affect fish and wildlife, and to negatively influence recreational fishing on lakes. The effects of individual shoreline developments on the nearshore lake environment accumulate over time, affecting fish, amphibians, birds, and other wildlife.
Bioengineered shoreline stabilization includes techniques that can prevent erosion, as well as improve water quality, and fish and wildlife habitat. Shoreline protection techniques that use deep-rooting native plants and shrubs, in addition to biological erosion control structures, natural materials, coir logs, brush bundles, and rock to protect shoreline as well as add habitat, are a best management practice on inland lakes in Michigan. These techniques can be designed in such a way to be able to handle a variety of conditions and water levels. Using plants in the littoral zone and biological materials to disperse wave energy, rather than reflect wave energy, is crucial to protect your property and your neighbor’s property. In the State of Michigan, the loss of lakeshore habitat and lakeshore complexity are major stressors on our lakes. Activities
that simplify the shoreline, such as eliminating aquatic and emergent vegetation, seawalls, and fills into the littoral zone, result in lower diversity as shoreline and aquatic plant and animal species are eliminated. Diverse natural ecosystems are better able to cope with stress because there are a variety of species that thrive under different conditions. Maintaining
habitat complexity on our inland lakes perpetuates the functions and values we all enjoy.
EGLE recently updated the General Permit and Minor Project Categories for wetlands, lakes, and streams in Michigan. The General Permit and Minor Project Categories are expedited permits for activities which will cause only minimal adverse effects when performed separately, and will have only minimal cumulative adverse effects on the environment by incorporating current best management practices (BMP). For shoreline stabilization projects, using bioengineering techniques, including plants, rocks, and woody structures are the current best management practices. These BMPs protect shorelines from erosion while also protecting and enhancing the water quality and habitat of our inland lakes. We’ve
reached a point in Michigan where the education, technology, and infrastructure has made less impactful alternatives widely available and achievable. We know that there are many owners with existing seawalls who apply for replacement of those walls every year, and the new category allows for replacement of existing seawalls if BMPs are incorporated. The
category is flexible, giving applicants the ability to choose the BMP that they prefer, or to propose another measure of their choice.
The choices include:
- Reduce the total length of the seawall by 25% or more, and use
riprap or bioengineering on the remaining area. For example, this could
include a break in the wall for bioengineering, or a shortened wall at one
end, etc. - Shoreline woody structure waterward of the replacement wall.
Designs following the protocol from the Wisconsin DNR's document
entitled, "Fish Sticks; Improving Lake Habitat with Woody Structure" are
recommended. We will share a link to that document in The Michigan
Riparian magazine's companion newsletter. - Maintenance of a minimum 6 ft. wide no-mow zone or native planted buffer strip landward
of the wall, for the entire length of the wall. It may include minimal breaks
for riparian rights access, such as around docks or swimming areas. - Other measures approved by staff.
HOW THE BMPS MITIGATE THE HARMFUL IMPACTS OF SEAWALLS
- Seawalls cause scouring of the lake bottom and erosion of
neighboring properties, but BMPs such as shoreline woody structure,
riprap, and bioengineering address this impact by absorbing and
dissipating wave energy. - Seawalls cause sediment and nutrient suspension, and cumulatively
lower water quality, but BMPs such as natural buffer strips, shoreline
woody structure, riprap, and bioengineering address this impact by
filtering sediment from runoff and stabilizing sediment. - Seawalls do not support aquatic and shoreline vegetation growth,
but bioengineering and shoreline woody structure BMPs address this
impact by dissipating wave energy and supporting plant growth. - Seawalls have no habitat complexity or ecological value, but BMPs
such as riprap, shoreline woody structure, and bioengineering address
this impact by creating more complex microhabitats where organisms
can thrive. - Seawalls create a barrier for animal movement, but BMPs such
as reducing seawall length and bioengineering address this impact by
improving land-water connectivity.
These criteria allow a permit to be issued under an expedited category, and do not require financial assurance, easements, or detailed monitoring efforts. There are many resources available for lakefront property owners to find contractors and learn about different options for shoreline stabilization. EGLE recently gave a webinar covering BMPs for inland lake shorelines including the seawall replacement category and BMP requirements.
Welcome to Our Website
- Details
- Written by Admin Admin
- Category: Welcome to Our New Website
Welcome to the new and improved Manistee Lake Association web site. We hope you like the look and the many additional features. We have tried to make the site far more useful as a source of information and communication. Many of the features are in the members only area so we encourage everyone to become a member and to register for the member area. Access is free to MLA members. Members please make sure to update your member information so we have current contact information for you. If you are a new resident who does not receive our newsletter, please give us your contact information so we can add you to our database. Just click on the contact us link under website feedback on the lower right of this page and submit your information.
We invite comments and suggestions to improve the site as well. We want to make this site as useful and user friendly as we can. We have tried to minimize some features to lessen download times for those of you with slower internet connections. We will continue to add information to the site and to improve features as we go so please check back often and let us know what you think. I hope you enjoy our new home on the web. Spread the word around. Manistee Lake can always use more friends.
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