AUXILIARY EQUIPMENT

GLDD designs and builds specialty equipment to either enhance or address special requirements from clients. Some ideas involve adapting or improving existing technology. Other ideas may involve the development of completely new technology.

Drillboats: Drillboats are used to fragment rock into smaller pieces using explosives. The rock pieces are then removed by bucket or cutter suction dredges. GLDD’s fleet includes two state-of-the-art drillboats.

Boosters: Booster pumps provide auxiliary power to extend the distance of the company’s fleet of cutter suction dredges and trailing suction hopper dredges. GLDD’s fleet includes six booster pumps and they range in power from 3,600 to 14,400 hp (2,685 to 10,830 kW).

Spider Barges: Spider barges are used to load barges with material that is pumped by a cutter suction dredge. There are currently three spider barges in the GLDD fleet.

Hydraulic Unloader: Hydraulic unloaders are used to rehandle material from a hopper barge to an upland disposal site. GLDD currently has one of these units.

CRAB: Coastal Research Amphibious Buggy (CRAB) deploys instruments on the bottom of the ocean, collecting data for the purpose of monitoring the progress of beach renourishment projects.

DRILLBOAT APACHE

Coast Guard Inspected

Length: 210 ft (64.0 m)
Breadth: 60 ft (18.3 m)
Depth: 10.5 ft (3.2 m)
Draft: 5.0 ft (1.5 m)
Overall Length: 71 in² x 97 ft 1.8 m² x 29.5 m
Spuds (4): 5.9 ft x 97 ft (1.8 m² x 29.5 m)
Pin-Up Distance: 3.5 ft (1.1 m)
Drilling Depth: 85 ft (25.9 m)
Drill Hole Diameter: 5 in (25.4 mm)
Pin-Up Force: 2,500,000 lb (11,125 kN)
Spud Winches: Four 184,000 lb linepull @ 44 ft/min each; 2.75-in wire rope
Fuel Capacity: 10,000 gal (37,854 l)
Hydraulic Unit: Two 650 hp (485 kW) diesel-driven units
Generators: Two 180 kW Caterpillar 3412S

BOOSTER JACK (NO. 1)

 

Length: 80 ft (24.4 m)
Breadth: 42 ft (12.8 m)
Depth: 8 ft (2.4 m)
Discharge Diameter: 30 in (762 mm)
Suction Diameter: 30 in (762 mm)
Main Pump Power: 3,600 hp @900 rpm (2,686 kW)
Fuel Capacity: 54,000 gal (204,412 l)

BOOSTER JESSIE (NO. 2)

 

Length: 140 ft (42.7 m)
Breadth: 60 ft (15.2 m)
Depth: 12.5 ft (3.8 m)
Discharge Diameter: 30 in (762 mm)
Suction Diameter: 30 in (762 mm)
Main Pump Power: 2-3,600 hp (7,200 hp) @900 rpm (5,371 kW)
Fuel Capacity: 102,000 gal (386,112 l)

BOOSTER REGGIE (NO. 4)

 

Length: 113 ft (34.4 m)
Breadth: 56 ft (17 m)
Depth: 6 ft (1.8 m)
Discharge Diameter: 30 in (762 mm)
Suction Diameter: 30 in (762 mm)
Main Pump Power: 3,600 hp @900 rpm (2,686 kW)
Fuel Capacity: 30,000 gal (113,562 l)

BOOSTER ERIN (NO. 5)

 

Length: 160 ft (48.8 m)
Breadth: 54 ft (16.5 m)
Depth: 12.5 ft (3.8 m)
Discharge Diameter: 30 in (762 mm)
Suction Diameter: 30 in (762 mm)
Main Pump Power: 3,600 hp @900 rpm (2,686 kW)
Fuel Capacity: 28,000 gal (105,992 l)

BOOSTER BUSTER (NO. 6)

 

Length: 215 ft (65.5 m)
Breadth: 45 ft (13.7 m)
Depth: 13 ft (4 m)
Discharge Diameter: 30 in (762 mm)
Suction Diameter: 30 in (762 mm)
Main Pump Power: 14,400 hp @ 900 rpm (10,742 kW)
Fuel Capacity: 100,000 gal (378,541 l)

BOOSTER TEXAS JR. (NO. 7)

 

Discharge Diameter: 30 in (762 mm)
Suction Diameter: 30 in (762 mm)
Main Pump Power: 2-1,950 hp (3,900 hp) @900 rpm (2,909 kW)

BOOSTER NO. 8

 

Length: 172 ft (52.4 m)
Breadth: 42 ft (12.8 m)
Depth: 12.5 ft (2.4 m)
Discharge Diameter: 30 in (762 mm)
Suction Diameter: 30 in (762 mm)
Main Pump Power: 3,600 hp @900 rpm (2,686 kW)
Fuel Capacity: 20,000 gal (75,708 l)

LONG ISLAND (BOOSTER/TRANSFER STATION)

 

Length: 510 ft (155.5 m)
Breadth: 75 ft (22.9 m)
Depth: 31.5 ft (9.6 m)
Hopper Capacity: 16,080 cubic yards (12,294 cubic meters)
Discharge Diameter: 30 in (762 mm)
Suction Diameter: 33 in (838.2 mm)
Main Pump Power: 11,900 hp (8,877 kW)
Generators: 5,700 bhp (4,252 kW)
Fuel Capacity: 84,000 gal (317,975 l)

SPIDER BARGE G.L. 175

 

Length: 210 ft (64 m)
Breadth: 60 ft (18.3 m)
Depth: 10 ft (3 m)
Discharge Diameter: 30 in (762 mm)
Loading Arrangement: Three/Side Six-Arm Arrangement

UNLOADER NO. 2

 

Length: 112 ft (34 m)
Breadth: 50 ft (15 m)
Depth: 12 ft (3.5 m)
Draft: 7.5 ft (2.3 m)
Overall Length: 155 ft (47 m)
Discharge Diameter: 24 in (610 mm)
Suction Diameter: 24 in (610 mm)
Total Installed Power: 6,800 hp (5,071 kW)
Fuel Capacity: 104,000 gal (393,683 l)

CRAB

 Amphibious Survey Vehicle

Length: 33 ft (10 m)
Breadth: 30 ft (9 m)
Depth: 29 ft (9 m)
Ground Clearance: 3.5 ft (1 m)
Water Clearance: 24 ft (7.3 m)
Weight: 29,000 lbs (13,154 kg)
Travel Speed: 0-6 mph (0-9.5 kpm)
Main Engine: 3054 Caterpillar
Hydraulic: Inifinitely Variable Hydraulic, All Wheel Drive
Hydraulic Fluid: Mobile EAL224H-Vegetable Based
Navigation/Survey: Trimble RTK-GPS 5700 STI Tilt, Honeywell HMR3000

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The Ellis Island

The Ellis Island recently commenced dredging operations on Phase 1 of the MSCIP Comprehensive Barrier Island Restoration Plan in the U. S. Gulf of Mexico offshore of Gulfport Mississippi. With a 15,000 cubic yard capacity Ellis Island is the largest hopper dredge in the U. S..

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