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HOW DO I KNOW IF MY POND NEEDS DREDGING
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- Опубликовано: 13 авг 2024
- ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
0:00 - Intro
1:36 - What is pond dredging?
2:56 - How to Tell If My Pond Needs Dredging?
3:22 - What if I have Shallow Water and Smaller Shorelines
4:09 - How do I know if I have an Algae Outbreak?
8:34 - Less Aquatic Wildlife and Excess Plant Life
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If you’re a homeowner, golf course, or HOA manager, you might have heard that your pond will eventually need to be dredged to help ensure it doesn’t dry up and turn into a swamp. From the second that your man-made pond was originally filled with water, it began a natural cycle that will eventually lead to its slow decline as the years and decades go by.
Silt and sediment will make their way into the pond and start to cause all sorts of problems, such as nuisance algae outbreaks, fish and animal die-offs, and ultimately-a shallow swamp that’s filled with cattails and murky water that’s entangled with weeds.
By performing annual or semi-annual dredging on your pond, you can help extend its life indefinitely and ensure that a healthy and visually appealing ecosystem will thrive.
We want to share with you a few tips on how you can tell if your HOA, golf course, or home pond needs the services of a professional dredger to protect and beautify your body of water.
What is Pond Dredging?
Dredging a pond is the process of removing several feet of sediment, or muck as it’s commonly called. There are several ways to go about this process, but it’s mostly done with a small boat or barge that has an oversized vacuum cleaner attached to it. The dredgers will work a grid pattern as they remove the organic sediment.
As the muck is sucked up off the bottom, it’s deposited into a collection device that’s often referred to as an “eco bag.” They are made out of heavy-duty material and are strategically placed along the shoreline. Tiny little holes allow excess water to leave the bag. After the job is completed, the resulting muck that’s been dredged up from the bottom of the pond can be re-used as a nutrient-rich fertilizer for plants and flowers.
2:56 - How to Tell If My Pond Needs Dredging?
The average pond should be dredged once or twice a year, depending on the size and amount of organic debris and sediment that it accumulates. If you haven’t had your golf course or HOA ponds dredged in a while or you just bought a house and are unsure when the last time the pond was dredged, there are three signs that will let you know it’s time to call in the professionals:
3:22 - Shallow Water and Smaller Shorelines
Over the course of any given year, various forms of organic debris such as leaves, twigs, and sediment will make their way into the bottom of your pond. In the fall time, trees will shed their leaves, and the ensuing rains will wash that debris into the pond. During spring and summer rainstorms, hundreds of pounds of sediment will enter into the body of water and make their way to the bottom.
All of this organic debris and sediment will cause your pond to start to shrink and become shallow in water depth. At first, you may not notice it as most ponds are 8-9 feet in depth. By the time you start to see weed piling up in the center, it’s a sign that a major dredging is required.
4:09 - Algae Outbreaks
The muck at the bottom of the pond contains a vast amount of nutrients that will feed the algae and cause an outbreak that can suck up all the oxygen and cause fish and plants to die off. These blooms often occur in the warm summer months and can cover an entire body of water with a foul-smelling yellow/green mat of algae.
In some situations, the algae can become toxic to both humans and animals who touch it. These blue-green algae are often hard to identify by visual sight alone and usually requires the services of a laboratory to confirm their presence.
Dredging the muck off the bottom of the pond can help limit and prevent these unsightly and potentially dangerous outbreaks from occurring.
8:34 - Less Aquatic Wildlife and Excess Plant Life
If you’re starting to notice fewer birds, fish, and animals, it might be time to dredge the pond. The excess nutrients in the water column can cause an imbalance that will discourage wildlife from visiting or living in the water.
Excess plant life is another excellent sign that your pond needs dredging. Weeds, cattails, and other nuisance plants thrive on the nutrient-rich waters of un-dredged ponds. If left unchecked, they will eventually take over the entire surface of the water and rapidly accelerate the demise of the pond.
Nation-Wide Expert Pond Dredgers
At American Underwater Services, we specialize in HOA, golf course, farm, and homeowner pond dredging. We can help you regain control over your ponds and turn them into crystal-clear water havens for fish, animals, and people alike. To learn more about our nationwide pond dredging and cleaning services.
Hmm, once or twice a year seems a little excessive. From experiences I've had, every 10-15 years is more likely. Diver-operated dredging runs in the range of $250-$750/cubic yard, including materials and disposal. In the demonstration video, it shows the diver removing approximately 2' of sediment from the bottom of the pond. The pond the divers are working in it neighborhood of 3 acres in size. Doing the math on the conservative side, that would make the dredging of this pond in the range of $2.5 million. I don't think there are many people that are going to be doing that on a semi or even annual basis. Performing bathymetric surveys would be a good first step in determining if a pond needs to be dredged and will inform you as to how much material will need to be removed so you can budget for it. It's a good idea to do post-dredging bathymetric surveys as well to verify that the correct amount of sediment was removed during the project.
Hello Norm, it’s hard to say how many times to recommend dredging frequency. Generally speaking 3 to 10 year range would be suffice. We take the position that the pond owners do not like to get hit with rather large costs that are associated with waiting 10 to 20 years when the job could become potentially massive in costs and disposal. Ultimately dredging frequency all depends on how much material is coming in due to construction sites, general erosion, leaves and just basic sediment.
The cost per cubic yard that you mentioned I’ve actually never even heard of numbers that high.
I have spent many years working offshore running bathymetric survey systems as well as some inland projects. They are not fullproof and leave a wide array of inaccuracies that usually cause potential problems between the contractor and the client. Side scan sonar systems do not accurately decipher the amount of sediment, mud, rocks that are deposited on the natural “original” contour of the pond bottom.
I encourage you to watch our video how to properly probe a pond. Obviously large massive bodies of water will need a side-scan sonar.
Thank you very much for watching our video and appreciate the dialogue be careful stay safe👍
And another thing is if u do it more often u don’t have as much to get rid of so then your cost is going to b less
Randy, logistical setup is a significant cost in a project and you're not taking that into account, only the volume of material being removed. Assuming the rate the lake is filling with sediment is constant, here is an example. If 100 cubic yards of material accumulates annually, removing that after one year involves the price of getting the contractor on site (basically fixed) and the cost/hour that sediment can be removed (basically fixed). If you do it again the next year, you have both of those same costs. But, if you wait and do it after two years, you only have one setup cost. It is still going to take basically the same amount of time for the contractor to remove the sediment, whether they do it in two 100 cubic yard removals or one 200 cubic yard removal. So, it's cheaper in the long run; in essence, like buying in bulk. It is incumbent on budgeting though for that larger (but cheaper per unit cost) expenditure.
You can try to clean the lake on your own and without a diver. It is enough to have a motor pump for mud and a suction nozzle for a mini dredger Bagermaster
Way too excessive. lol
sedimont removal system (a company im apart of) is a much cheaper option for home owners, HOA, golf course owners and more as we are much cheaper and we are not considered dredging as all we are doing is CLEANING the pond and restoring it back to its former glory
Wow, I've never seen anything like this, what an incredible job! How much mud can you dredge like this in a day? It must be very tough for the divers!
2,300 gpm is the ability of the pump but it all depends on resources and safety of the workers.
Tanner forgot the suction hose
Cool video!
Glad you enjoyed it
Has your diver ever used a Bagermaster suction nozzle?
Can you recommend a company in Ohio that can do this job.... Great video.... Great information.... Thank you
Yes we can.. please email us so we send you the information.
Call or email us 👍🏻