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Erosion Control - Systems and Solutions

Construction on a shoreline to stop erosion is called Freshwater Marine Construction. This is hyper-specialized sub-category within the construction industry. Not many construction companies offer erosion control and shoreline stabilization services we are the only company in Southwest Florida that specializes in it! 


After many years of research and development and working closely with marine civil engineers, some of the most effective and most advanced erosion control systems in the industry are now available. These systems are competitively priced and typically last much longer than the alternatives. The Erosion Defense SystemTM utilizes native Rip Rap rock to offer superb resistance to erosion. The Hybrid Shell SystemTM,PatPend utilizes crushed shell and native Littoral Plants, to create a system that actually becomes more effective with time.  There is also an Organic Shoreline SystemTM which the most natural-looking system and features biodegradable Turf Reinforcement Mat with Littoral Plants (left picture). Lastly, the Shore RestoreTM system is our most economical system and simply returns the shoreline back to its original look.


There are other systems that have shorter lifespans, utilize outdated technology, and are not environmentally friendly. These include: Geotubes (below picture), ShoreSox® DredgeSox®, Erosion Control Blankets/Turf Reinforcement Mats, and Geoweb. These systems are priced about the same as the ones discussed above, but typically only last a few to several years. They all depend on synthetic materials to hold in the shoreline and eventually the grass and plants used to cover them dies off and exposes the material. This often leads to worse escarpments (drop-offs) at the edge of the shoreline which can create dangerous conditions and make the water body out of compliance. Contractors often have to come in and remove the old system and install a new, more natural system. (The Erosion Defense SystemTM also utilizes a synthetic material, but it rarely ever becomes exposed because of a thick layer of natural rock that covers it permanently.) Additionally, there are documented cases in which native wildlife has become trapped and killed by these synthetic systems. Lakes need a system that increases the native wildlife population… not one that decreases it!

Some of the more expensive systems that are primarily used for Saltwater Marine Construction include: Seawalls, Wood Bulkheads, Boulders/Cap Rock, and Sheet Pile which are installed on large canals, rivers, jetties, marinas, boathouses, bays, and some Gulf shore properties. These systems can cost three to five times as much as the others making them a non-viable option for the average freshwater shoreline with erosion that has already occurred. In some cases, wealthy homeowners are able to afford these options and prefer them because they look more extravagant and are the most effective at erosion control. Keep in mind, these systems all must go through a lengthy permitting process as they are hardening the shoreline and involve vertical construction in a sense. Seawalls are probably the most popular solution in this category and are often required to be used along fresh and saltwater canals, rivers, and navigable waterways, but they are typically not appropriate for use on lakes and ponds.

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In order for a man-made lake to maintain its appearance and function, it must be properly maintained. Although a lot of factors are involved in lake and pond maintenance, at the most basic level, a healthy lake essentially has clean water with a well-balanced pH, a flora and fauna population that is entirely or mostly native, shorelines with thick, healthy littoral shelves and no erosion present, and a frequently maintained storm-water management system that ensures proper handling and discharge of rainwater. For proper maintenance, each spray technician must have a knowledge of the species of plants growing in the lake and on the shoreline. They must also know how to kill/remove the exotics without harming the beneficial native species . When exotic species (weeds) get out of control, they harm the native flora and fauna and can affect water quality. Exotics must be sprayed with an EPA or DEP approved herbicide and must be hit surgically by a seasoned technician so as to avoid overspray onto beneficial native littorals in the vicinity. This is one of the most difficult tasks for a large lake maintenance company to complete properly because of the hundreds or thousands of lakes they must treat each year. So, try to stay away from the huge companies (several dozen to hundreds of maintenance accounts) where you are just a statistic. The company you hire should have a horticulturist, botanist, or biologist on staff in order to help solve complicated lake problems when the need arises.
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Hydrogeology is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth's crust. The terms groundwater hydrology, geohydrology, and hydrogeology are often used interchangeably. 1 This is a hyper-focused field of research that deals directly with erosion and its effects on ponds, lakes, rivers, canals, and streams. The root word is hydro (water)- geo (earth)- ology (the study of). In the field of erosion control it is important to analyze where water is coming from so that the root of the problem can be addressed. Then, it must be determined how the water is eroding the earth underneath it. Is there a lack of stabilizing ground-cover such as sod, mulch, or matting? Is the soil loose and uncompacted? How quickly does the water move over land? Unless these questions are addressed, you may be coming up with a plan or installing a system that is going to be less effective at erosion control.
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Hydroecology is the science and related engineering aspects pertaining to the movement of water through an ecosystem or environment as it relates to the complex and changing interactions between precipitation, water flow, water storage, flora, and fauna. In the erosion control industry, this study becomes important because of the flourishing natural ecosystem found on all lakes, ponds, rivers, canals, wetlands, preserves, and hammocks. More specifically, the amount of littoral (seasonally-flooded) plants that are present as a direct result of water present. Lakes and ponds that are allowed to get too dry or have too much water pumped out of them will typically have less native flora and fauna. Additionally, lakes that receive unhealthy water from pollution, run-off, algae blooms, etc. usually have an unhealthy ecosystem both in the water and just above it on the shorelines. Water from rainfall is absorbed by a planned community’s storm water management system. This system directs the water into the lakes underground. However, the water that falls in areas where it is not “managed” can create sheet flow, washouts, erosion, and damage to the landscaping and/or lake. A body of water with a healthy littoral shelf (congregation of seasonally-flooded plants) fosters activities such as nesting and feeding for local wildlife. It also helps stabilize the shoreline from erosion and may filter out heavy metals and contaminates from fertilizer and other man-made chemicals. Ergo, an evenly distributed and sustainable waterflow (hydro) on and above a shoreline helps sustain a healthy ecosystem (ecology). Rainwater that is allowed to undermine sod, turf reinforcement mat (TRM), and synthetic geotubes and ShoreSOX® will lead to sinking sod, failed mats, and exposed bags/tubes on your lake system. This is not good!

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