Cargo Offload and Discharge System (COLDS)
The Cargo Offload and Discharge System includes the Cargo Offload and Transfer System (COTS) for dry cargo and the Offshore Bulk Fuel System (OBFS) for liquid cargo. COLDS supports Logistics-Over-The-Shore (LOTS) operations-the loading and unloading of Marine Corps Maritime Prepositioning Force (MPF) and Assault Follow-On Echelon (AFOE) ships-in the absence of established port facilities. Routine replacement of these heavily used assets maintains LOTS readiness.
The Cargo Offload and Discharge System is the major naval systems for in-stream cargo offload and discharge. COLDS has two major subsystems; for dry cargo, the cargo offloading and transfer system, and for liquid cargo the off-shore bulks fuel system. Navy COLDS equipment and facilities include lighterage causeway ferries, floating piers, the RO/RO discharge facilities, and elevated causeway expeditionary pier. Liquid cargo offload is supported by the amphibious assault bulk fuel/water system and OPDS. Army LOTS equipment includes terminal service unit handling equipment, shore-based water storage systems, and the tactical petroleum terminal. LOTS operations can be conducted over unimproved shorelines, through fixed ports not accessible to deep draft vessels, and through fixed ports that are inadequate without the use of LOTS capabilities.
Executing JLOTS requires a great deal of large specialized equipment. The Navy's Cargo Offload and Discharge System or the Army's Modular Causeway System form the primary structures spanning the distance from the sealift ship to the shore. Landing craft and warping tugs are also used to assemble causeways and move other equipment. Prior to assembly, unloading the causeway systems requires heavy lift capability such as Navy amphibious construction battalions or Army floating craft companies.
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