US Army Corps of Engineers
Philadelphia District & Marine Design Center Website

USACE Floating Crane QUAD CITIES

USACE Marine Design Center & USACE Rock Island District
Published Jan. 3, 2020
The U.S. Army Corps of Engineers' Marine Design Center managed the procurement of the Floating Crane "Quad Cities" on behalf of the USACE Rock Island District.

The U.S. Army Corps of Engineers' Marine Design Center managed the procurement of the Floating Crane "Quad Cities" on behalf of the USACE Rock Island District.

Vessel Owner: United States Army Corps of Engineers
Vessel Builder: Conrad Deepwater South Shipyard, Amelia, LA.
Vessel Designer: USACE Marine Design Center and Bristol Harbor Group
Project Management Team: USACE Marine Design Center and Rock Island District
Vessel Operation Team: USACE Rock Island District
Vessel Certification: American Bureau of Shipping (ABS) Class ✠A1, Barge Reinforcement B, for use as a Government Floating Crane, Intracoastal Waterway Service, with CRC and Crane CRC Notations

Vessel Particulars:

  • Length Overall: 300’- 0”
  • Breadth: 68’-0”
  • Hull Depth: 12’-0”
  • Draft (Des.): 5’-0”
  • Air Draft (Des.): 45’-11”
  • Displacement: ~2,850 Ltons
  • Fuel Capacity: 53,000 Gal.
  • Potable Water: 9,500 Gal.
  • Sewage: 9,750 Gal.
  • Generators: (2) John Deere -150 kW, 480V, 3 Phase
  • Deck Winches: (8) Patterson 7.5 HP WWP-65E7.5
  • Spud Winches: (4) 75 HP PDI – 54,000 lbs. line pull

Crane Particulars:

  • Seatrax Series S140, Model S14440, S/N 4825
  • Crane Boom: 170 Foot to Main Hook
  • Main Cap: 500 Tons (out to 55’ radius); 276 Tons @ 60’ Fully Revolving w/out ballasting
  • Aux Hook Cap: 50 Tons (all radii)
  • Fast Line Cap: 38 Tons (all radii)
  • Counterweight: 470,000 lbs
  • Out of Level: 7 degrees crane trim/5 degrees crane list limits
  • Crane Engine: Caterpillar C27 – 950 HP @ 2,100 RPM
  • Folding Gantry stows in approximately 1 minute.
  • API 2.C Monogrammed and ABS Classed for CRC Notation