Bahrain Investment Wharf, BSC

This project called for dredging and reclamation of 5.9 million cubic meters of material. A variety of dredges performed the work, including the cutter suction work by the dredge California and direct pump dredging by the hopper dredge Northerly Island. The dump and rehandle placement was handled by the dredges Manhattan and Sugar Island.

Arab Shipbuilding and Repair Yard (ASRY) at Hidd, Bahrain

Arab Shipbuilding and Repair Yard Co. (ASRY)

This project entailed dredging, reclamation and construction for a multi-use land development program. The large cutter suction dredges Texas, California performed the basic excavation and fill tasks for this project, with the smaller CSDs Alabama and Utah responsible for the detailed work and some of the canal excavation. The circular canal was excavated in the dry with land equipment. This work, and the rock-lined shore work by our joint venture partner, required close coordination including several other types of floating and shore equipment. The project was complicated by the poor existing ground conditions at the start of the project, which entailed special measures and fill placement. All told, 6,900,000 cubic meters were excavated and placed.

Durrat Khaleej al Bahrain

This project entailed dredging, reclamation and construction for a multi-use land development program. The large cutter suction dredges Texas and California performed the basic excavation and fill tasks for this project, with the smaller CSDs Alabama and Utah responsible for the detailed beach work and canal excavation. This work, and the rock-lined shore work by our subcontractor required close coordination including several other types of floating and shore equipment. All told, 5,500,000 cubic meters were excavated and placed.

The contract required the dredging of approximately 370,000 cubic meters of sandy material to a depth of -10 meters. This new-work dredging project was part of Carnival's development of a two-berth terminal for cruise ships, which has allowed them to make over 200 cruise ship calls annually.

Dredge Type: Cutter Suction & Trailing Suction Hopper Dredge

Quantity: 80,000,000 cubic meters

• Phase I: 35,000,000 cubic meters of marine borrow material over a 36-month period to reclaim 6,000,000 square meters of new land.
• Phase II: 45,000,000 cubic meters of marine borrow material over a 36-month period to reclaim another 6,000,000 square meters of land adjacent to the Stage I work.

The Bahrain Government and Kuwait Finance House.

The Durrat Al Bahrain resort construction project was completed through a joint venture between Great Lakes and AA Nass Contracting. The project involved the reclamation of over 6 million square meters of land for the creation of the resort, which consists of 13 islands, with over 2,000 villas and 2,000 apartments, with luxury hotels, restaurants, promenades, shopping centers, marina, spas, sports facilities and an 18-hole golf course.

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

This project 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. 

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 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 reclamation
• Rock Armor Placement: 1,000,000 tons

This project involved the excavation of approximately 26,000,000 cubic meters of material to create the new Port of Al Sukhna. The existing coastline consisted of a gently shelving beach that required an access channel some 2.2 miles long in order to reach the required depth of 18 meters. The dredged material was disposed of at designated onshore and offshore disposal areas, approximately eight kilometers from the turning basin. The overburden was removed by dry excavation and then a cutter dredge removed the remainder of the material. A second cutter dredge removed the underlying gravel to the offshore disposal area using a spider barge and scows. Once a depth of 10 meters had been achieved by cutter suction dredges, a hopper dredge completed dredging the access channel and turning circle to the final depth of 18 meters.

This project was performed to create a much-widened stretch of reclaimed land and to put in place a protective revetment and groyne system that would prevent future inundation of inhabited areas by storm waters from the Gulf of Guinea in one direction or by flood waters in the Keta Lagoon from the other. Great Lakes restored the beaches between the groynes along a 9-km stretch. The works also entailed the construction of a 9-km road, the purchase and operation of a nearby rock quarry, and the creation and maintenance of some 50 km of suitable roadways for transport of the rock via the company's fleet of eight 100-ton ore trucks. GLDD performed this work using two demountable cutter suction dredges, and finished four months ahead of schedule.

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. 

This project involved deepening the entrance bar channel and interior channels of San Juan Harbor, with offshore disposal of materials, including:

This project was for the development of an LNG berthing facility for a new power plant on India's west coast, involving creation of a new channel and an adjacent turning basin. Excavating soft sediments, Great Lakes used a hopper dredge to remove 1,200,000 cubic meters of clay from the channel and turning basin, digging to a depth of 14 meters, and transported the dredged material to an offshore disposal area. A hydraulic chisel was used for fragmentation of 300,000 cubic meters of hard granite over an area of 450,000 square meters. This material was excavated by bucket-ladder dredge, loading material into barges for deposition at sea. Additionally, the project required excavation for a foundation in advance of  new breakwater construction.

Adjacent to its new dock facilities, Carbonser needed to dredge 6,000,000 cubic yards of material from the Lázaro Cárdenas access channel and turning basin, taking them to a new depth of -54 ft. The material to be dredged, an extremely heavy and abrasive combination of sand, gravel, and cobble, meant that pumping the material to its final disposal site would not be cost efficient. Not only was production severely impacted by the heavy material, but the wear on dredge pumps and pipeline was unusually high. GLDD's solution to the distance problem was use of a temporary stockpile area, where material was loaded onto trucks and hauled to the final disposal site, obviating a cumbersome dewatering problem at the final disposal site and allowing higher production rates.

The graving dock for the construction of the world's largest petroleum drilling platform was enclosed by a large earthen berm. Great Lakes was contracted to excavate an evacuation channel behind the berm, and when the platform was ready for transport to its assembly site in deeper water, the company created an opening in the berm to allow entrance of water for flotation of the mammoth structure. This was schedule-sensitive work, and required the deployment of two clamshell dredges, a drillboat, material barges and attendant vessels in a relatively small, confined area. The work was finished on schedule, despite the addition of numerous unanticipated elements.

Immediately following the end of major military activity, Great Lakes was contracted to dredge and dispose of 4,500,000 cubic meters of accumulated silts from the floor of the Port of Umm Qasr. Great Lakes conducted its own hydrographic survey. The presence of unexploded ordnance complicated the project, necessitating the use of specialists in the areas of magnetometric survey and disposal of unexploded ordnance. The funding was provided by the U.S. Agency for International Development.

This work entailed reclamation of a 200-meter x 500-meter area for flour mill processing and transshipment facilities. Some 2,000,000 cubic meters of caprock, gravel and sandstone were placed, along with 100,000 tons of quarry run rock protection and 25,000 tons of rock armor.

Dredging the entrance channel for Gorda Cay necessitated the removal of only about 600,000 cubic yards, but the material to be dredged was limestone of varying strengths, and timing was critical. The dredged material, placed directly adjacent to the new channel, was to form the bund on which the dock and staging area were later constructed. Though it was thought that the dredging could be done by a cutter suction dredge without blasting, the decision was made to blast, to meet schedule. The island is now known as Castaway Cay, a featured destination of Disney Cruise Lines.

This project involved cutter suction dredging of sand and rock for navigation and reclamation in order to construct an extension for the container terminal at the Port of Khor Fakkan.

In a phased construction sequence, the GLDD cutter suction dredge Alaska first deepened the port alongside a previously constructed dock, which was designed to transfer fluid fuels from transport vessels to the power plant ashore; dredged material was pumped to a limited upland disposal area. As part of this effort, GLDD added a new weir and upgraded the disposal area. The clamshell Dredge No. 53 then removed remaining material. After loading each bargeful of material, the dredge was moved across the harbor to offload the scow to the upland area. The dredge loaded large offroad trucks, which hauled the material to a nearby disposal area. The final phase of the work was to dredge to an entrance channel to accommodate the larger ships that would be bringing coal to the power plant.

This trench project involved excavating a 70-meter x 1.1-kilometer flotation channel and a 0.9-kilometer pipeline trench. Several hundred meters of the excavation was through rock, which was drilled and blasted for removal. This rock had compressive strengths up to 105.3 MPa, and the final trench was 8.5 meters deep. An extension of the shore was built from the pumphouse foundation pad, out away from the shore to enable the end of the trench to be drilled and blasted in the dry with shore equipment. The dredged material was pumped offshore to create a recreational island.

Great Lakes was called upon by the U.S. Army to perform emergency maintenance dredging in the Port of Kuwait related to the war effort in Iraq. The trailing suction hopper dredge Victoria Island completed the maintenance work along Berths 7 through 10 in February 2004.

This small but complex project involved 55,000 cubic yards (40,000 cubic meters) of dredged material. Instead of disposal in an offshore site, the material was disposed of upland in a very small storage area. The dredging cycle began with the clamshell Dredge No. 53 digging and loading a dump scow. The dredge and scow were then moved together to the nearby onshore offloading area. The dredge removed the material from the scow, casting it into a stockpile onshore. The material was then subsequently loaded into trucks by skiploader and hauled to the landfill, some 17 kilometers away.

For this project, Great Lakes dredged alongside a newly constructed quay wall. The total project quantity was 315,000 cubic meters, dredging to a depth of –13.0 meters along the 360-meter face of the wall, and along its northern and southern approach curves. Nearly all the material was located within 50 meters of the quay wall. Great Lakes dredged to –13.0 meters within 5 meters of the wall, but not deeper than –13.5 meters within 10 meters of the quay wall. Since there were strict standards regarding the discharge of suspended solids, a special 750-meter x 750-meter shoreside disposal area was constructed, ensuring discharge of clear water through a specially constructed weir.