Installations
The Versi-Dredge’s primary use is in dredging marinas, lakes and rivers. In these environments it is demonstrating its value in helping to alleviate the effects of flooding.
The dredge can also be used to tackle projects in many other environments. The Versi-Dredge has been successfully used to remove many other products including:
- aquatic weeds
- sand
- fly and bottom ash
- coal fines
- rock flour and mine tailings
- mud and silt
- paper mill and municipal sludge
- lime and alum sludge.
A video of a the Versi-Dredge 5012 LP in action
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A video of a the Versi-Dredge 7012 HP in action
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A video of a sand dredging demonstration
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IMS Dredger features in an article on coping with flooding
The IMS Dredge was featured in an article in the Borneo Times on how dredging can alleviate flooding. Read this article.
Cutter-suction Versi-Dredge 5012HP dredger removes the need for offshore disposal
Every marina operator faces the ongoing challenge of the need to dredge their basin to maintain serviceable navigation depths, and whilst the frequency of dredge-campaigns is a symptom of the morphology, geology and local tidal, estuarial or waterway constraints, the inevitable need to dredge is a fact of life. Principally the deposition of sediments occurs where the behaviours of the water body change, a sheltered, calm, deep basin is an ideal silt trap for the million of tonnes of semi-fluid ("suspended") sediments that are present within our catchments in the UK.
The largest single cost and risk to any dredge-campaign is the disposal of the materials generated, whether it be the risk of weather delays as the contractors cannot journey to the licensed offshore disposal site in heavy seas, or the astronomic costs of disposal of materials to landfill or agriculture. Thus, the key to an economic dredging contract is the early identification of the most cost-effective/lowest risk disposal route.
"The influences here can have several magnitudes of cost effect on a project" explains Mike Ridding, Regional Contracts Manager for Land and Water Services Ltd, national Dredging Contractors. "Dredging contaminated sediments can cost £5-9/m3 to dredge, £15-45/m3 to pre-treat and a further £20-85 per m3 to transport and dispose of depending on material types, whereas conventional offshore disposal of unpolluted materials to a licensed site can be £7-15/m3 and cutter-suction dredging considerably lower again, the variances are colossal".
A 7012 HP Versi-Dredge is used at Marina Del Rey near LAX International Airport
 A 7012 HP Versi-Dredge has been put to good use at Marina Del Rey near LAX International Airport. The majority of the project was sand removal from the Marina channel but the massive amount of trash deposited by years of tourists and boaters visiting the area has now been cleaned from the channel creating a safer environment for the many species of fish and birds that inhabit the area.
The Environment Agency and Versi-Dredge
The Environment Agency has recently contracted Versi-Dredge to work on the River Thames near Oxford. Once this work has been completed, the dredge’s next task will be to create some lakes. The spoil will be used as landfill for a new housing project in the Cotswolds.
Versi-Dredge installation at Cotswold Water Park
These pictures show a 5012 Versi-Dredge being delivered to the Cotswold Water Park. The dredge will be used to open up a new lake as part of a new leisure housing development.
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