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RECLAMATION WORKS
 
Dredging methods are frequently employed to mine aggregate from the sea floor for the purposes of raising the elevation of low lying coastal land in order to make it useable for development. Alternatively, completely new land can be built in the water generally for purposes of port expansion, real estate development or airport construction. This type of development is often combined with the construction of new or expanded shipping channels, recreation craft channels and marinas. Dredging and land reclamation is a significant and necessary infrastructure activity. Dredging is constantly required to keep our ports and rivers navigable and usable. Land reclamation is required to re-build beaches and shoreline barriers.


SAND ISLAND RECLAMATION
Location
 Sand Island, Alabama
Client
 
USACE - Mobile District
Contract
 
Dredge Type: Cutter Suction Dredge
Dredge: Alaska
Quantity: 1,400,000 cubic yards
Duration: September - November 2011
Description
 

This renourishment project entailed rebuilding Sand Island, a piece of land located offshore of Alabama and south of Mobile Bay. The cutter suction dredge Alaska pumped approximately 1,400,000 cubic yards of sand from the Sand Island Beneficial Use Area to form an underwater Berm and then an island around the lighthouse. As a result of this beneficial use project, the 138-year-old Sand Island Lighthouse has gained critical protection from environmental elements.

 

CRANEY ISLAND EASTWARD EXPANSION, SOUTH & DIVISION CROSS DIKES STAGE 1
Location
 Portsmouth, Virginia
Client
 The Port of Virginia
Contract
 
Dredge Type: Trailing Suction Hopper Dredge
Dredge: Liberty Island
Quantity: 580,000 cubic yards
Duration: Dredging- December 2010-March 2011;
                Wick Drain Installation- April 2011-October 2011
Description
 

This project involved hydraulic sand placement of the first lift for the South and Cross Dikes for the Craney Island Eastward Expansion Project. The Liberty Island dredged material from the Atlantic Ocean Channel borrow area and pumped in place through a spill barge that was specifically designed and fabricated for this project. The sand was required to be placed in thin layers to avoid mud waves and excessive settlement. After completion of the sand fill, 12,700,000 linear feet of prefabricated vertical drains (wick drains) were installed.

 

PORT OF LONG BEACH: PIER J
Location
 Long Beach, California
Client
 The Port of Long Beach, California
Contract
 
Type: Cutter Suction Dredge and Mechanical Dredge
Dredge: Florida, No. 53
Quantity: 13,750,000 cubic yards
Duration: 26 months

Description
 
This project for the expansion of the Port of Long Beach's Pier J involved 26 months of work, including: 
  • Construction of a 120-acre landfill
  • Construction of 12,000 feet of perimeter rock dikes for reclamation area
  • Dredging and placement of 13,750,000 cubic yards of material for containment area
  • Controlled placement, coordinated with dike construction to create a solid foundation
  • Dredging depths in excess of 90 feet.
  • Armor Rock Placement: 600,000 tons
  • Dike Rock Placement: 1,700,000 tons

 

LOS ANGELES: PIER 400
Location
 Los Angeles Harbor, California
Client
 Port of Los Angeles
Contract
 Dredge Type: Cutter Suction, Clamshell and
                       Trailing Suction Hopper Dredge
Quantity: 52,000,000 cubic yards
Description
 

The construction of Pier 400 in Los Angeles Harbor stretched over five and a half years. The 593-acre terminal is now the largest proprietary container terminal in the world, with a total berthing length of 7,190 feet (1.4 miles). Pier 400 will earn the Port of Los Angeles approximately $2,000,000,000 over the next 25 years.

  • Dredging: 52,500,000 cubic yards by cutter suction, clamshell and trailing suction hopper dredge
  • Rock Placement: 9,000,000 tons of quarry run rock
  • Rock Armor Placement: 1,600,000 tons
 

ØRESUND FIXED LINK
Location
 Copenhagen, Denmark
Client
 The Øresund Consortium
Contract
 Dredge Type: Dipper Dredge and Clamshell Dredge
Quantity: 10,500,000 cubic yards (8,000,000 cubic meters)
Duration: 1995-1999
Description
 

The road/rail Øresund Fixed Link joins Sweden and Denmark via a 4-km tunnel, a 4-km artificial island (Peberholm), and an 8-km cable-stayed bridge. The dredging and reclamation contract involved design, dredging and construction of the tunnel trench, work harbors, navigation and construction channels, compensation areas, and an artificial peninsula and island. GLDD participated as a member of the Øresund Marine Joint Venture. The project entailed:

  • Dredging: 10,500,000 yd³ (8,000,000 m³)
  • Stone Works: 2,200,000 tons (2,000,000 m tons)
  • Fill, Island: 11,100,000 yd³ (8,500,000 m³)
  • Fill, Peninsula: 3,900,000 yd³ (3,000,000 m³)
  • 544-acre (220-hectare) dike-lined landfill
  • Construction of 39,400 ft (12 km) of perimeter rock revetments for the reclamation area
 

DOHA, QATAR: CONTAINER TERMINAL
Client
 The Ministry of Municipal Affairs & Agriculture
Contract
 
Description
 

This project involved the deepening and widening of the entrance channel to the Port of Doha, the construction of a container terminal site, and bund construction for the future development of a new international airport.

  • Channel Excavation: 16 km in length, 165 m wide, 11 m deep
  • Material placement: Caprock, bedrock limestone, gravel, sand and silt material 10,000,000 cubic meters; 4,000,000 cubic meters of reclamation material
  • Rock Armor Placement: 1,000,000 tons
 

DOHA, QATAR: WEST BAY LAGOON
Location
 Doha, Qatar
Client
 The Ministry of Municipal Affairs & Agriculture
Contract
 Dredge Type: Cutter Suction Dredge
Dredge: Illinois
Quantity: 7,200,000 cubic meters
Description
 

The project was designed to transform a low-lying swamp area into a luxury residential lagoon development accommodating hundreds of housing lots, a hotel, conference center, sports and recreational facilities with extensive public beach access, marina facilities and protective breakwater structures. The offshore work was performed with the cutter suction dredge Illinois.

 

KHALIFA BIN SALMAN PORT & INDUSTRIAL AREA, HIDD, BAHRAIN
Client
 The Kingdom of Bahrain
Contract
 Dredge Type: Cutter Suction & Trailing Suction Hopper Dredge
Dredges: Carolina and Victoria Island
Quantity: 31,000,000 cubic yards

Description
 

The total contract entailed dredging 31,000,000 cubic yards of material to be used for building land for the new port, the placement of 4,000,000 tons of rock protection and breakwater structures, and construction of a 1.1-mile-long quaywall. Great Lakes used the cutter suction dredge Carolina and the trailing suction hopper dredge Victoria Island to complete the works.

 
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