The Undersea Company Marine Services

Fleet & equipment

Fleet & equipment

CASCADE, MAVERICK, and a special-purpose aluminum work barge support survey, dive, towing, salvage, and field projects.

CASCADE underway with mountains behind
CASCADE underway

Special-purpose vessel

CASCADE

Fifty feet of towing power, survey capability, dive support, deck handling, and accommodations for extended missions.

50 ftLength
16 ftBeam
7 ftDraft
39 tonsDisplacement

CASCADE specifications

CASCADE specifications

Current vessel configuration and project-specific equipment should be confirmed during project planning.

PropulsionTwin 405 hp Cummins QVC diesels; 810 hp combined
PerformanceEconomy cruise 10 knots; fast cruise 16 knots; maximum cruise 18 knots
Fuel & water800 gallons fuel; 100 gallons water; 14 g.p.h. water maker
Electrical7 kW Northern Lights generator
AccommodationsFive berths, head, shower, washer/dryer, hydronic heat, and full galley
Deck handlingOne-ton 360-degree hydraulic crane, stern elevator platform, towing bit, and hydraulic windlass
Dive supportBauer high-pressure compressor, diver deployment platform, communications, tools, and light commercial underwater-work equipment
Mission systemsSide scan sonar, inspection-class R.O.V., proton magnetometer, drop camera, recording, and mission displays
Working deck and wheelhouse of CASCADE
Working deck
Marine engineer inspecting CASCADE engine-room machinery
Engine room
CASCADE pilothouse seating and navigation area
Pilothouse
Wheelhouse controls and navigation station aboard CASCADE
Navigation station
Bunk accommodations aboard CASCADE
Berthing
Towing & salvage equipment
  • 150 lb anchor with 1,000 feet of chain and cable on windlass
  • Tow bit with 40,000 lb maximum-pull rating
  • 1,000 feet of 38,000 lb Plasma tow line
  • 600 feet of 9,000 lb Spectra tow line
  • One-ton 360-degree hydraulic crane
  • Stern elevator platform for diver deployment
Exploration, search & survey equipment
  • Marine Sonic side scan sonar and towfish
  • SeaBotix inspection-class R.O.V. with umbilical, grabber, and imaging sonar
  • Proton magnetometer and digital grid workflow
  • Color drop camera and recorded mission output
  • Scuba and surface-supplied diver capability
Living & remote-project support
  • Four bunks below and one pilothouse bunk
  • Head, shower, washer/dryer, and hydronic heating
  • Microwave, stove top, oven, refrigerator, and freezer
  • Hot freshwater rinse at the stern
  • Extended remote capability with water maker

Additional platforms

MAVERICK & aluminum barge

MAVERICK alongside CASCADE at a floating dock
Mobile survey / dive platform

MAVERICK

A fast 22.5-foot platform for mobile survey, dive, and nearshore work.

Power150 hp Yamaha four-stroke with 15 hp auxiliary
Cruise20 knots normal; 35 knots top speed
Best forMobile survey, dive support, rapid access, and lighter missions
CASCADE alongside a work barge during a marine project
Heavy equipment / diver platform

ALUMINUM BARGE

A 25-foot special-purpose platform for heavy equipment transport, anchor deployment, and diver operations.

Dimensions25 feet long by 9.5 feet beam
Capacity12,000 lb load-out; two-ton removable hydraulic A-frame
Working gearFour 15-foot spuds, one-ton 360-degree davit, and moon pool

Project inquiry

Choose the right platform.

Send the operating area, duration, personnel count, payload, depth, and lifting or towing requirements.

Plan a missionSee capabilities