Gourt > Business > Mining and Drilling > Dredging (1)
Dredging is miscellaneous excavation-type work or operation usually carried out in underwater, shallow sea or fresh water area.
A dredge is a device for scraping or sucking the seabed, used for dredging.
A dredger is a ship or boat equipped with a dredge.
In American usage any floating vessel equipped with dredging equipment is called a dredge.
- These words also have other unrelated meanings: see #Other meanings of the word.
Types of dredging
- Capital dredging: carried out to create a new harbor or berth or waterway, or deepen an existing one in order to allow larger ships to use it. It is usually carried out with a cutter-suction dredge.
- Maintenance dredging: deepening navigable seaports and waterways which have become silted with the passage of time, due to sand and mud deposited by water currents, until they may become too shallow for navigation. This is often carried out with a trailing suction hopper dredge. Most dredging is for this purpose.
- Land reclamation: mining sand, clay or rock from the seabed and using it to construct new land. This is typically performed by a cutter-suction dredge or trailing suction hopper dredge.
- Beach Nourishment: mining sand offshore and placing on a beach to replace sand eroded by storms or wave action. This is done to enhance the recreational and protective function of the beaches. This is typically performed by a cutter-suction dredge or trailing suction hopper dredge.
- Removing trash and debris from the bottoms of rivers and canals and harbors.
- Getting useful material from the seabed. One possible type in the future, is recovering natural metal ore nodules from the abyssal plains.
- Contaminant remediation. Dredging is often used to reclimate areas affected by chemical spills, storm water surges (with urban runoff), and other soil contaminations. Disposal becomes an aproportionatly large factor in these operations.
- Anti-eutrophication. Dredging is an (expensive) option for the remediation of eutrophied (or de-oxygenated) water bodies. As artificialy elevated phosphorus levels in the sediment aggrivate the eutrophication process, controlled sediment removal is occasionally the only option for the reclimation of still waters.
Suction dredgers
These operate by sucking through a long tube, like some vacuum cleaners. A plain suction dredger has no tool at the end of the suction pipe to disturb the material. More on [ Dredge ]
Excavation :: Commercial Contractors
Maritime :: Transportation and Logistics
Water Resources
Another. Biopace. Comment. This one at least apologizes for dredging up an ancient post. But the dude can still floss with my ass hairs.
jarvitron (Aaron) Wed, 06 Jan 2010 22:48:34 -0000
Another. Biopace. Comment. This one at least apologizes for dredging up an ancient post. But the dude can still floss with my ass hairs.
@thurrott Making up fake rumors, is one thing. Dredging up bad memories is another thing entirely...
chustar (chustar) Wed, 06 Jan 2010 21:41:36 -0000
@thurrott Making up fake rumors, is one thing. Dredging up bad memories is another thing entirely...
@otmdish What's the statute of limitations anyway? Shocked she's dredging up a '04 review for lawsuit--esp. when she worked less than 1 year
SeattleTallPopp (Traca Savadogo) Wed, 06 Jan 2010 20:53:54 -0000
@otmdish What's the statute of limitations anyway? Shocked she's dredging up a '04 review for lawsuit--esp. when she worked less than 1 year
Recovery--Maintenance Dredging, Delaware River, Philadelphia, Pennsylvania to Trenton, New Jersey http://bit.ly/6GSGcC
fedbizops (FedBizOps) Wed, 06 Jan 2010 20:30:20 -0000
Recovery--Maintenance Dredging, Delaware River, Philadelphia, Pennsylvania to Trenton, New Jersey http://bit.ly/6GSGcC
DUTRA DREDGING COMPANY - Akutan Harbor Improvement: Bidding the navigation improvements @ Akutan Harbor. Seekin.. http://bit.ly/8xXkiy
buyalaska_test (BuyAlaska Test) Wed, 06 Jan 2010 18:49:26 -0000
DUTRA DREDGING COMPANY - Akutan Harbor Improvement: Bidding the navigation improvements @ Akutan Harbor. Seekin.. http://bit.ly/8xXkiy
Dredge Operator/Engineer – Dredging & Marine Works - International - Belgium - Energy Resourcing Ltd http://www.stopdodo.com/?j=11816
stopdodoDOTcom (Ad) Wed, 06 Jan 2010 16:47:21 -0000
Dredge Operator/Engineer – Dredging & Marine Works - International - Belgium - Energy Resourcing Ltd http://www.stopdodo.com/?j=11816
Channels Ltd. - Execution of dredging works using trailing suction hopper dredgers. Provision of hydro-graphic surveys, project management, and consultancy.
Dock Company - Dredging contractor with a fleet of hydraulic cutterhead, clamshell, backhoe, trailing suction hopper dredges, drillboats and attendant plant. The company maintains marine yards in six locations.
Meta Description: [ Great Lakes Dredge & Dock Company is the largest dredging contractor in the U.S. and one of the largest in the world. Great Lakes’ versatile fleet of hydraulic cutterhead, clamshell, backhoe, trailing suction hopper dredges, drillboats and attendant plant includes twenty-eight dredges and is va... ]
Anderson Dredging - International dredging and hydraulic land reclamation consulting firm.
Anthony D. Bates Partnership - Dredging and coastal consulting engineers for land reclamation, marina construction, and dock formation projects.
Meta Description: [ Anthony Bates Partnership, Dredging and Coastal Consultancy ]
Ballast Neddam Dredging - Executes world-wide dredging projects and related activities.
Central Dredging Association - An independent, non-profit, non-governmental, professional society for the dredging industry serving Europe, Africa and the Middle-East.
Dredge America - Dredges marinas, boat slips, boat basins, lakes, navigation channels, ponds, lagoons, and sand using portable, hydraulic dredges.
Meta Description: [ Dredge America, the leader in environmental dredging. ]
DredgeJobs - Medium for recruitment within the dredging industry, providing a chance for human resources departments and job seekers to use dredging news online to promote their vacancies and resumes.
Meta Description: [ The site for recruitment within the dredging industry, providing a chance for Human Resources departments & Job Seekers to use Dredging News Online to promote their vacancies and resumes. ]
Dredging International - Capital and maintenance dredging, land reclamation and port construction company affiliated with the DEME Group.
Dredging Specialists - Provides dredging services, consulting, custom dredges.
Meta Description: [ Dredging Specialists offers Dredge, Dredging, Dredges, Dredging Contractor, Environmental Dredges and also Dredging Equipment ]
Dutch Dredging - Dredging company in The Netherlands with 18 ships.
Meta Description: [ Dutch Dredging is a world ranking dredging company active in major marine engineering projects around the globe. ]
Inner Space Dredging Services, Inc. - Dredging and marine contractor specializing in hydraulic, mechanical and environmental dredging.
Meta Description: [ Inner Space Dredging is a Full Service Dredging and Marine Contractor. ]
International Association of Dredging Companies - 120-member organization for contractors in the private dredging sector.
Meta Description: [ Mambo - the dynamic portal engine and content management system ]
International Dredging Review - A trade journal for the dredging industry, reporting on the full spectrum of events and issues in the industry.
Meta Description: [ IDR is a print and online resource that provides dredging industry news & information, articles and an article archive, a dredge owners and operators directory and a dredging forum. ]
Jan De Nul N.V. - International contractor specializing in dredging, land reclamation, heavy lifting, offshore and environmental services.
Meta Description: [ Jan De Nul is an international contractor specializing in dredging, land reclamation, heavy lifting, offshore and environmental services. In Belgium it also executes all kinds of civil engineering and marine construction works. ]
Javeler Dredging - Hydraulic dredging contractor and equipment company.
Meta Description: [ We are a specialized dredging and equipment company that utilize Toyo Pumps. It's more than a pump, it's how Javeler makes it work. ]
Marine International Dragage - A Canadian company specializing in marine dredging of port basins, access channels, navigation channels, inland waterways, and lakes. Site is in English and French.
Meta Description: [ L'entreprise est hautement spécialisée dans les travaux de dragage maritime, autant dans les fleuves, les rivières que les lacs. Is specialized in dredging of port basins, access channels, navigation channels,... ]
Michigan Hydraulic Dredging - Over-the-road dredging company for small marinas, trout ponds, lake restorations and similar industrial projects.
Meta Description: [ Michigan Hydraulic Dredging, an experienced and professional dredging company used for trout ponds, complete lake restorations, and many other projects. ]
OCI Engineering Sdn Bhd - Engaged in consultancy, design, supply and construction of alluvial dredges and mining plants.
Meta Description: [ Supply of bucket line, dredges, alluvial, placer mining and mineral processing plants, jigs, trommel screens, separators, attritioner scrubbers, dryers, castings, rubberline, rubber products, monitors, classifiers, conveyors ]
Petremex - Specialists in marine dredging and the production of aggregate, gravel and sand. Based in Mexico.
Rohde Nielsen A/S - Specialist in capital and maintenance dredging, land reclamation and coastal defence such as beach nourishment.
Royal Boskalis Westminster nv - Operates worldwide for the construction and maintenance of harbours andwaterways, land reclamation, and coastal defences, and riverbank protection.
Meta Description: [ Baggerbedrijf Koninklijke Boskalis Westminster nv is een topspeler in de waterbouw ]
United Dredging Corporation - Offers dredging, mining and engineering services world wide for land beach reclamation and development, mineral mining and siltation dredging. Specializing in the Caribbean.
Meta Description: [ United Dredging Corp. offers mining and engineering services world wide for land & offshore. Dredging services for beach reclamation & development, mineral mining and siltation dredging. We also have equipment for sale. ]
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Van Oord ACZ - Dredging and marine contractors, specialized in dredging, offshore services and coastal construction projects.
Western Dredging Association - Promotes the exchange of knowledge in fields related to dredging, navigation, marine engineering and construction.
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