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.

Auxiliary Equipment

DRILLBOAT APACHE

Coast Guard Inspected

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
Hydraulic Unit: Two 650 hp (485 kW) diesel-driven units
Generators: Two 180 kW Caterpillar 3412S
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)
+ Operating Parameters
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
+ Machinery and Power
Hydraulic Unit: Two 650 hp (485 kW) diesel-driven units
Generators: Two 180 kW Caterpillar 3412S
+ Dimensions
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)
Auxiliary Equipment

DRILL NO. 8

Length: 175 ft (53.3 m)
Breadth: 42 ft (12.8 m)
Depth: 8.3 ft (2.5 m)
Draft: 4.0 ft (1.2 m)
Spuds: 900 in² x 80 ft 0.581 m² x 24.4 m
Pin-Up Distance: 25.4 ft (7.7 m)
Drilling Depth: 85 ft (25.9 m)
Drill Hole Diameter: 4.5 in (114 mm)
Pin-Up Force: 400,000 lb (1,780 kN)
Drill Frames: Three frames; one drill sets/position
Spud Winches: Four 30,000 lb linepull @ 30 ft/min each; 1.5-in wire rope
Anchor Winches: Two Manitowoc diesel-driven winches with two drums/winch, 1.125-in wire rope 40,000 linepull @ 66 ft/min
Generators: One 150 kW Caterpillar 342C One 40-kW Detroit Diesel
+ Dimensions
Length: 175 ft (53.3 m)
Breadth: 42 ft (12.8 m)
Depth: 8.3 ft (2.5 m)
Draft: 4.0 ft (1.2 m)
Spuds: 900 in² x 80 ft 0.581 m² x 24.4 m
+ Operating Parameters
Pin-Up Distance: 25.4 ft (7.7 m)
Drilling Depth: 85 ft (25.9 m)
Drill Hole Diameter: 4.5 in (114 mm)
Pin-Up Force: 400,000 lb (1,780 kN)
Drill Frames: Three frames; one drill sets/position
Spud Winches: Four 30,000 lb linepull @ 30 ft/min each; 1.5-in wire rope
+ Machinery and Power
Anchor Winches: Two Manitowoc diesel-driven winches with two drums/winch, 1.125-in wire rope 40,000 linepull @ 66 ft/min
Generators: One 150 kW Caterpillar 342C One 40-kW Detroit Diesel
Auxiliary Equipment

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

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

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

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

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

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

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

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

SPIDER BARGE G.L. 175

Length: 210 ft (64 m)
Width: 60 ft (18.3 m)
Depth: 10 ft (3 m)
Discharge Diameter: 30 in (762 mm)
Loading Arrangement: Two/Side Four-Arm
+ Dimensions
Length: 210 ft (64 m)
Width: 60 ft (18.3 m)
Depth: 10 ft (3 m)
+ Operating Parameters
Discharge Diameter: 30 in (762 mm)
+ Machinery and Power
Loading Arrangement: Two/Side Four-Arm
Auxiliary Equipment

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 (5,073 kW)
Fuel Capacity: 104,000 gal (394,000 l)
+ Dimensions
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)
+ Operating Parameters
Discharge Diameter: 24 in (610 mm)
Suction Diameter: 24 in (610 mm)
+ Machinery and Power
Total Installed Power: 6,800 hp (5,073 kW)
Fuel Capacity: 104,000 gal (394,000 l)
Auxiliary Equipment

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)
Total Installed Power: 3054 Caterpillar 10,591 kW
Hydraulic Unit: Infinitely Variable Hydrostatic, All Wheel Drive
+ Dimensions
Length: 33 ft (10 m)
Breadth: 30 ft (9 m)
Depth: 29 ft (9 m)
+ Performance
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)
+ Machinery and Power
Total Installed Power: 3054 Caterpillar 10,591 kW
Hydraulic Unit: Infinitely Variable Hydrostatic, All Wheel Drive