The last thing you need are cost overruns, environmental damage and huge cleanup costs from a botched job. It is a routine necessity in waterways around the world because sedimentation—the natural process of sand and silt washing downstream—gradually fills channels and harbors. A great example of planning comes from Illinois. Determining the type of dredging you require will go a long way to helping you choose the right teams and methods to tackle that dredging.
Here are a few different reasons you may need to dredge:. Preventative Dredging — This is one of the most common forms of dredging for shipping channels and ports. They need to dredge before any problems occur. Restoration Dredging — This type of dredging occurs after some damage has already been done. Silt is also building up on root mass in and around the lake and affecting the shrubs and trees both in the lake and on its edges. Without intervention, the lake would eventually silt over entirely and become a swamp.
How to Dredge Your Lake Effectively: An Owner’s Guide
You likely need to start here if shorelines are facing constant erosion and invasive plants are taking over. Contamination Dredging — This is the worst type of problem to have. It likely means some damage is already being done. This is common in ports and lakes where a spill has occurred, or as metals build up on the lake floor from boat traffic.
This is where resuspension is an important topic. Depth Dredging — Need a mancova in r lake for boating, or to better support fish stock? Mechanical — Often uses a large crane or backhoe to remove material with a bucket digging down. Lake may or may not need to be drained to employ this method. Great for removing large objects. Hydraulic — More like a vacuum that sucks up silt and debris. There many pros and cons to each type of dredging and some methods work better than others.
Most companies will have a track record you can view. It will give you a good idea of how they handle any unforeseen issues. Reputation means something in this industry. Dredging is a complex process that involves a lot of planning.
Preparation, Preparation, Preparation! Email us at admin 3rinc. Suscribe for the latest on industry trends and service offerings.If you ever take a boat out on the lake, you have to be careful of the amount of muck in the lake. Muck is sediments at the bottom of a lake or pond. The more muck a lake has the greater the impact it will have on the quality of the lake and recreational activities involved with the lake.
Dredging should be done to a lake when the sediments are affecting the water quality and inconveniencing recreational activities. ENVIROdredge is a cost effective way to dredge sediments and not harm the environment in the process.
The dredging process is done by pumping the material into sealed containers. The removal of debris and sediments is under control of federal and state regulations as well as the US Environmental Protection Agency. ENVIROdredge can be used in almost any body of water such as lakes, lagoons, storm water basins, ponds, canals, and marinas. It can also be used in these locations.
There are many benefits to dredging a body of water. For recreational uses, boats will have more water under the boat and less sediment will get caught in the propeller. The water quality greatly improves which improves the lives of fish and fishing opportunities.
Many types of sediment can contain pollutants from industrial runoff; this greatly affects the water quality. When the pollutants and sediments are removed, the overall health of the lake improves. January 14, dsquared Dredging If you ever take a boat out on the lake, you have to be careful of the amount of muck in the lake. Please Share This. Get monthly updates on trends in environmental management and info on best practices for healthy waterways.
Opt-out anytime. All Rights reserved.Always contact your local municipality before you dredge any pond, and clear the activity with them before beginning. Ponds are an ecosystem, a geographical feature and a manageable resource.
Dredging a pond has to take all of these things plus your municipal zoning rules into consideration. While it may seem like a simple matter of dredging your own pond on your own property, sticky laws in regards to water tables and wetlands sometimes make this a not-so-simple process. Add to that the depth and nature of your pond, and dredging can be quite involved.
Depending on the size of your pond and your needs, there are a variety of methods to get the job done. Wade into the pond to clear it by hand if the structure is shallow and the silt to be removed is minimal.
Put on the waders to do this job. Use either hip waders or full waders, depending on the depth you need to access. Rake the bottom of the pond to remove vegetation. Rake in a regular pattern so you cover the entire bottom and don't miss any patches.
Starting in the center and raking out in a spoke pattern is a good method. Work in clockwise fashion so you cover the entire bottom. Drag the vegetation to the shore and spread it to dry before hauling it away. The dried vegetation can be composted. Scrape the silt off the bottom of the pond with a shovel and deposit it in the wheelbarrow. Take care not to dig too deeply unless you desire to increase the depth of the pond past the built-up silt layer.
The silt will feel soft and mucky, as opposed to the true bottom of the pond, which will be thick mud that gives some resistance when the shovel contacts it. Mix the dredged silt with compost or other soil to re-use the material. Do not just deposit it on the bank of the pond; silt is light and is not true soil, so it will wash right back into the pond with any rainfall.
Attach a heavy-duty steel cable to a gallon metal drum with a lid. Use the machine to drag the barrel back and forth across the pond. The barrel scrapes silt as it goes across the bottom, and the water escapes through the lid. Empty the bucket after it is no more than half full. At first, this will be after each pass; eventually, you will need to empty the bucket every few passes as you collect most of the silt from the bottom.
Drain the pond using the pump to expose the bottom surface of the pond. Direct the flow of water toward an area that can accept the water without flooding any roads, driveways or other features.
Do not drain the water into a sewer system or other waterway, such as a local stream. Allow the pond bed to dry out so the machinery does not become stuck while cleaning out the silt. Scrape the bottom of the pond with the excavating blade. Remove the silt and relocate it to another area where it can be mixed with soil so it does not recontaminate the pond. When the bottom is cleared of silt and debris, refill the pond.Much like a living organism, lakes and ponds are born and age.
While this is the eventual fate of every lake and pond, proactive management strategies like nutrient remediation, aerationbuffer management and hydro-raking can help prolong the lifespan of the waterbody for many years. If your lake or pond is beyond saving through proactive management, the next best option is dredging.
Dredging is a costly, but this tried and true solution that can give years back to your waterbody. The chosen method will depend on a number of factors including sediment composition, environmental sensitivity, volume of materials removed, budget and disposal considerations. Truck transportable mechanical dredges such as Aquamogs can be delivered to virtually any waterbody to remove sediments in targeted areas or to clear rooted marginal plants such as cattails from stormwater detention basins or flood control channels.
For most ponds, the most cost effective option is mechanical dredging with a floating excavator or Aquamog that is capable of direct sediment transfer to dump trucks. They utilize a rotating underwater cutter and pumps to create a liquid slurry a mixture of sediment and water which is transferred to a disposal site via a floating pipeline.
Hydraulic dredges have almost continuous operating cycles, facilitating the removal of large volumes of material in a short time, while minimizing turbidity in the water column. This method is better suited for sediments with relatively low levels of rocks and hard debris as they can damage the cutter and clog the pipeline.
Hydraulic dredging is generally preferred for lakes, rivers and wetlands when the volumes are large and site logistics favor the transfer of sediments via pipeline over many truck trips. In smaller waterbodies, one must also consider how to replace several thousand gallons per minute of a water and sediment slurry that is pumped with a typical hydraulic dredge.Pond dredging/sediment removal
Hydraulic dredging also requires large disposal ponds to allow natural drying of the slurry or portable dewatering equipment to squeeze enough water from the sediment so it can be transported by truck to a disposal site. If your waterbody has reached the point where its form or function requires a dramatic change and can be drained completely of water, dry dredging using conventional excavation equipment may also be an option.
Property owners tend to have a lot of questions for dredging companies before they move forward with a dredging project:.
The answers to these questions are rarely simple and thus we answer them with input from our team of engineers, environmental scientists, and regulatory professionals. Given that d redging is one of the costliest and most invasive freshwater management projects your lake or pond will ever face, it's wise to first consider hydro-raking and biological dredging as an alternative to traditional dredging.
Your waterbody may benefit significantly from a full scale dredging operation, or just a few days of budget-friendly spot dredging at pump intakes, swimming areas or around boat docks. To navigate through a wide variety of sediment, aquatic plant or algae removal options for your waterbody, we encourage you to speak with your lake and pond management professional.
In support of our belief that lakes and ponds are a precious natural resource requiring protection, SOLitude is committed to providing sustainable and renewable solutions that maintain ecological balance in the workplace and beyond. When you partner with SOLitude, a dedicated field technician visits your lake or pond twice a month, leveraging extensive knowledge and training to carefully maintain ecological balance and preserve the appearance of your aquatic property.
Utilizing the latest GPS aquatic mapping technology and our own proprietary lake and pond management software, the experts at SOLitude collect all the data necessary to provide comprehensive analysis and in-depth solutions.
All Rights Reserved. CALL What are the permit requirements? What is the average cost to dredge a pond? Are there other ways to achieve the benefits of dredging at a lower cost?Always use caution when working with any metal cutting blades or bits.
Wear proper safety protection, such as glasses and gloves. Dredging can sometimes disturb the natural ecosystem and balance of your pond. Consider using a pond aeration system to alleviate problems before you decide to dredge. Over time, ponds will accumulate silt, fish waste and other impurities at the bottom. If they are allowed to get out of hand, these problems can cause a bad smell from the water, bacterial growth and even death of fish.
A cleaning method called dredging is necessary to alleviate these problems. Dredging involves running a special bucket through the bottom of the pond to collect these waste materials. A homemade pond dredge can be made with the right materials and some time. Remove one end of the gallon steel drum. Use a barrel cutter to remove the end. If you don't have one available, use a reciprocating saw. Remove any sharp edges with a metal file.
Drill holes in the other end of the steel drum. Space out the holes throughout the entire lid of the steel drum. Make sure the holes completely perforate the metal surface, so that water will be able to pass through. Drill 15 to 20 holes in this end. Drill four equally spaced holes on the outside of the steel drum, near the open end of the barrel. Make the holes just large enough to accept the eyebolts. Insert the eyebolts into the holds, with the large eye outside of the barrel. Install the nut onto the eyebolt, on the inside of the drum.
Use an adjustable wrench to tighten the nuts down. The eyebolts should be sticking out perpendicular to the outside of the barrel. Cut four lengths of steel cable. Make them 10 to 15 yards longer than the length of your pond. Attach each cable to an eyebolt on the steel drum. Loop each cable through a heavy-duty carabiner, and secure it with a cable clamp.
Use an adjustable wrench to secure the clamps tightly. The carabiners will allow you to quickly disconnect the barrel from the cables. Attach all four of the carabiners to the eyebolts.
Create a loop in the other end of each cable and secure it with a cable clamp. Use an adjustable wrench to tighten the clamp.We have programs using specialized equipment that will be efficient and give you excellent results. Mechanical Dredging or Hydraulic Dredging? Depends on your situation.
What is dredging?
If you have a lot of stumps, trees and debris mechanical dredging can be a better choice. Also a distant disposal area for your sediments may be a reason you may choose mechanical dredging, the further away the site you may need to have the sediments hauled away by our trucks.
The distance a hydraulic dredge can pump the sediment is limited. Dredging from shore with one of our 60 feet Long Reach excavators can make it convenient to dredge and remove sediments for areas that need to be dredged close to shore. Whether it be a pond, lakefront, canal, inlet, boat slips a lot of our mechanical dredging equipment can reach it effectively. Permits: some times the type of permit approved will dictate whether that the area needs to be dredged mechanically, which we can handle this for you.
Costs, for smaller projects sometimes the best solution in mechanical dredging. We can discuss and review your project and determine which process is best for you.
Our company has both Mechanical and Hydraulic dredging equipment, both large and small machines to meet your needs. Let us restore your marinas, harbors, channels, lakes and ponds back to their original depths. We can remove unwanted sediments by dredging and adding depth to improve boat navigation, dock slips, improve fish spawning areas, improve retention ponds, lagoons and help deter aquatic weed growth.
Please review this site and you can see pictures of recent jobs and information that will help you plan for your dredging project. Hydraulic Dredging Services Hydraulic Dredging can be done successfully with our fleet of large and small hydraulic dredging machines.
We understand each project has it's own unique set of circumstances and this is why we offer hydraulic dredging and mechanical dredging services. With hydraulic dredging the dredge has a discharge hose that can be seen in the pictures, at the rear of the machine, using floats to support the existing the hydraulic dredge.
From here the temporary pipeline continues and the lines will continue across the or are laid on the ground until they reach the sediment disposal area. The hydraulic dredge has an auger type head that rotates and chews into the sediment or vegetation, then vacuums the sediments into the temporary pipeline, which is pumped through until the sediments reach there destination, a spoils site or geotextile bag.
Further down the page we discuss the use of geotextile bags. The dredge can often remove the sediment and pump or transfer the material several thousand feet away, depending on the size of the hydraulic dredge, type of material being transferred or if the sediment is transferred up or down a slope.
Hydraulic dredging can be cheaper process when transferring large amounts of material, because you can transfer it quicker if the disposal site without the use of trucks. Again our dredging company has both Mechanical and Hydraulic dredging equipment, both large and small machines to meet your needs. Below is a picture of how the sediment exits the pipeline that is connected.
Advanced and Updated Hydraulic Dredging Technology: Hydraulic Dredging Contractor: The hydraulic dredging equipment we use is versatile, self propelled, provides increased dredging, flow capacity and will hydraulically dredge effectively highly abrasive sediments. Working capacity from 9. Our Dredging company can be one of your best choices for organic weed control and this is why: Dredging the Real Answer for Aquatic Weed Control - problems with Herbicide or Chemical use.
The more sunlight penetration usually the more weed growth you will have. You why you have to keep paying more in chemical treatment each year??
Not to mention what harm did you just put into the water. How much did it cost you? Let us Dredge and pu t our Dr edging Equipment to use for you.
We can handle your all your local dredging needs call Dredging a channel, river, canal : Sediment removal from lakes, canals, river, ponds are commonly removed to improve navigation; restore recreational access for leisure boating, swimming and fishing; or regain lost storage capacity in water supply of reservoirs.
Dredging also is done to remove nutrient- rich sediments, remove toxic substances, reduce rooted aquatic plant growth, lessen sediment suspension by winds and waves, and improve fish habitat.Dredging is a process used to remove accumulated sediment from the bottom, and in some cases, the banks or sides of a river, lake, stream or other body of water.
A specialized piece of equipment called a dredge creates a vacuum that sucks up and pumps out the unwanted sediment and debris. An excessive build-up of sediment can cause a series of issues. For instance, it can reduce the depth of the waterway and prevent the passage of ships.
It can also lead to contamination that poses a threat to aquatic plant and wildlife. In coastal areas, sediment accumulation can cause beaches to erode. We depend on waterways such as rivers, lakes, harbors and bays for everything from transporting goods to commercial fishing and recreation. Over time, these waterways can become filled with sand, silt and debris — or sediment — that make them difficult to navigate and sometimes pose an environmental hazard.
It often becomes necessary to find a way to remove a large accumulation of sediment to preserve the health of the waterway and enable its continued use for commercial applications.
A process known as dredging can provide a fast, efficient sediment removal solution. There are various types of dredges that can be used for the sediment removal process. The sediment removal process uses a machine known as a dredge to excavate the accumulated sediment and debris. A dredge is either partially or completely submerged in water and allows the operator to easily gather the sediment and transport it to a different location.
When dredging is done, sediment is relocated to a new location and used for a number of purposes. There are also other types of machines such as excavators that can be used for sediment removal. Dredging, is used for a number of purposes such as:.
Dredging provides numerous benefits for shipping, construction, and other projects. The advantages of dredging are:. During the process of dredging, a dredge is used to remove muck and mud from the bottom or side of a body of water.
A dredge is equipped with a submersible pump that relies on suction to excavate the debris. A long tube carries the sediment from the bottom of the body of water to the surface. The disposal of the dredged material must be conducted in compliance with federal, state and local government laws and regulations.
When dredging, the operator lowers the boom of a dredge to the bottom or side of the body of water. A rotating cutter-bar then uses teeth to loosen the settled material, as the submersible pump removes the sediment from the bottom of the waterway. The silt and debris are then transported away for final processing.
Check out the infographic below to learn how the dredging process works! There are several types of dredges used in the sediment removal process. The most common types of dredges are:. GeoForm International is pleased to offer superior pond dredging equipment that can make the sediment removal process faster and more efficient, regardless of your application.
Our world-famous Dino6 dredge is used for small dredging projects all over the world! Contact us for more information regarding our ergonomic dredging equipment! Contact Us Today.
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