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Pump Dredging and Shoreline Restoration in Florida

November 8, 2016

Pump dredging is here!  

 

Our maiden voyage of the Dragonfly pump dredge was a success!  Sediment problems and shoreline erosion can now be actively contained and reversed by our new DINO system.

Let’s talk about escarpments, dredging and geo-tubes…

Have you ever walked to the edge of a pond or lake and the ledge separating the land from the water is so steep that you were uncomfortable getting any closer to the water?  That long, steep slope is what is called the escarpment,  which has become unstable and unlevel due to water currents undercutting the banks, moving sediment around and creating a sharp ledge.

            escarpment-1            escarpment-2

You can solve two problems with one dredge: remove sediment that is filling in or changing the shape of the lake or pond and also reinvigorate and reestablish a safer and more stable shoreline.

dino

The DINO Dredge System

Dredging is performed in shallow areas with the purpose of gathering up bottom sediments and disposing of them in another location.  Rather than finding an expensive, off-site location to dump sediment or attempting to find a hidden area on a customer’s property, we can reuse the sediment to create a newer, cleaner and properly graded shoreline.

The process is simple: three types of geo-tube bags are used to create a new shoreline.  The pump dredge fills the nylon bags which capture sediment but releases water back into the pond or lake.

  1. base-bag-1The base bag is staked to the shoreline with rope and will create the new base for your shoreline.

 

 

 

 

 

middle-bag2. The middle tubes are placed on top of the base tube and tied into the shore with stakes. The middle tubes are added to create vertical height and to recreate an escarpment with a proper ratio.

 

top-tube-2

 

3. The top tube is called the sacrificial tube, because once filled it will be split open and graded to provide a base for a littoral shelf or sod to complete the new shoreline.

 

 

 

 

graded-slope-2 graded-slope-1 restored-shoreline

The above pictures from a dredging contract completed in Naples, Florida.  The sacrificial tube has been open and graded down the slope toward the water and back up the slope to create a cleaner, safer new shoreline.


Dragonfly Pond Works helps clients discover their sanctuary. We are an environmental services company that customizes water beautification solutions, creating natural pond, lake, and wetland refuges for residents, property owners, and community members to enjoy. Our practices work in harmony with nature, but also within your budget.

As experienced specialists in pond and lake management, our designs transform retention ponds, sand filters, stormwater basins, underground detention facilities, and other types of aquatic systems into healthy and integrated waterscapes.

From Maryland to Florida, Dragonfly Pond Works serves clients throughout the mid-Atlantic region, including corporate, commercial, and public accounts, residential customers, and homeowner associations. We strive to develop long-term relationships based on quality work, timely service, cost efficiency, and of course, trust.