Maintenance Dredging

We DHC can assure you that, Maintenance dredging is one the most significant aspects of the dredging industry. Bangladesh is riverine country located in South Asia with a coastline of 720KM (447 Mi) of the northern littoral of the Bay of Bengal.  The Ports and estuaries are under constant threat of siltation. Tidal movements deposit sand and silt from the sea in port basins and waterways. Rivers also carry sediment in their flows, which tends to settle in these deltas. Dredging for maintenance and improvement of the waterway to ensure safe navigation or dredging for maintenance and improvement of water regime performed in accordance with Bangladesh national law.

Maintenance dredging challenges

Maintenance dredging faces it own set of challenges. The different type of dredging equipment can provide a solution for each of these challenges. Such as by Grab, THSD or Normal suction dredger.

How DHC does maintenance dredging work?

1. Project identification 

After identifying an opportunity comes the planning phase. Find out the best way to approach a maintenance dredging project, determining the most optimal approach and equipment required in combination with the anticipated return on investment will provide an answer to the question: can and should we do it? Our answer is Off course- Yes. It is during the project planning that an answer to that dilemma must be formed.  The objective of the framework, as depicted on the figure below, is to build on the current strong regulatory requirements and ensure the ongoing protection of the Reef’s values and the continued operating efficiency of ports within the Great Barrier Reef World Heritage Area.

It is our aim to make sure that whatever project and approach you choose you will be successful.  DHC is able to assist in the very first phases of a project via consultancy, feasibility studies, setting up a preliminary business case and more. 


           Feasibility studies 

2. Equipment selection 

Once the general outline of a dredging project is known comes the phase of ‘how exactly are we going to do this’? The practical side of the operation. Do we need a cutter suction dredger, or perhaps smaller, more specialized equipment? What size should it be? How much will it cost and is there more we need to successfully execute this work? But also, is our crew skilled enough? Can we do this or do we need training or support beforehand?  

DHC has equipment available designed specifically for the conditions suitable for land reclamation

3. Execution 

If everything is in place; the workplan have proven it possible, equipment has been delivered to project area and all personnel able to operate it, it is just a matter of doing the job. In this stage of a project other concerns arise such as how can we keep the operation running, can we optimize our process.

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