630.574.3000 info@gldd.com HOME OUR COMPANY PROJECTS SAFETY INVESTORS MEDIA CAREERS CONTACT 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 Dimensions Operating Parameters Machinery and Power 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) BOOSTER JACK (NO. 1) Dimensions Operating Parameters Power Data Length: 80 ft (24.4 m) Breadth: 42 ft (12.8 m) Depth: 8 ft (2.4 m) BOOSTER JESSIE (NO. 2) Dimensions Operating Parameters Power Data Length: 140 ft (42.7 m) Breadth: 60 ft (15.2 m) Depth: 12.5 ft (3.8 m) BOOSTER REGGIE (NO. 4) Dimensions Operating Parameters Power Data Length: 113 ft (34.4 m) Breadth: 56 ft (17 m) Depth: 6 ft (1.8 m) BOOSTER ERIN (NO. 5) Dimensions Operating Parameters Power Data Length: 160 ft (48.8 m) Breadth: 54 ft (16.5 m) Depth: 12.5 ft (3.8 m) BOOSTER BUSTER (NO. 6) Dimensions Operating Parameters Power Data Length: 215 ft (65.5 m) Breadth: 45 ft (13.7 m) Depth: 13 ft (4 m) BOOSTER TEXAS JR. (NO. 7) Operating Parameters Power Data Discharge Diameter: 30 in (762 mm) Suction Diameter: 30 in (762 mm) BOOSTER NO. 8 Dimensions Operating Parameters Power Data Length: 172 ft (52.4 m) Breadth: 42 ft (12.8 m) Depth: 12.5 ft (2.4 m) LONG ISLAND (BOOSTER/TRANSFER STATION) Dimensions Operating Parameters Power Data Length: 510 ft (155.5 m) Breadth: 75 ft (22.9 m) Depth: 31.5 ft (9.6 m) SPIDER BARGE G.L. 175 Dimensions Operating Parameters Machinery & Power Length: 210 ft (64 m) Breadth: 60 ft (18.3 m) Depth: 10 ft (3 m) UNLOADER NO. 2 Dimensions Operating Parameters Machinery & Power 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) CRAB Amphibious Survey Vehicle Dimensions Operating Parameters Machinery & Power Length: 33 ft (10 m) Breadth: 30 ft (9 m) Depth: 29 ft (9 m) Got a Question? Our team of experts is ready to help! Let's Talk GLDD is North America’s dredging industry leader, the largest provider of marine dredging, and the only U.S. company with substantial overseas operations. GLDD owns and operates a diverse dredging fleet comprised of numerous specialized maritime vessels, and operates marine yards in five locations nationwide.  Headquarters: 9811 Katy Freeway, Suite 1200 Houston, TX 77024  Phone: 346-359-1010  Email: info@gldd.com © 2021 Great Lakes Dredge & Dock Company, LLC. All rights reserved.