Poseidon Jackup — a joint venture between Poseidon Barge Corp. of Berne, Indiana, and Dutch firm Combifloat Systems, backed by Seattle-based Marine Equipment Solutions (MES) — has introduced the MES-C7, a 100-by-60-foot self-elevating barge platform built for the North American market. The Jones Act-compliant, RINA-classed jack-up works in water depths exceeding 100 feet and carries a 440-ton deck load, elevated by four oversized hydraulic cylinders at a rate of eight inches per minute.

The platform achieves its capacity by integrating its four steel legs — each 48 inches in diameter, more than 50 tons, and 126 feet long — into the hull rather than mounting them externally. Operators run all legs simultaneously from an elevated, climate-controlled command station, with manual backups and a standby hydraulic circuit for redundancy. Because it is modular, the MES-C7 ships by road in 33 truckloads and assembles on site in about a week, reaching inland rivers, lakes, and reservoirs that larger single-hull platforms cannot.

Poseidon Jackup is marketing the platform for precision pile driving, waterfront and seawall construction, bridge work, cable laying, and offshore wind support, noting the elevated deck performs like working on land and lets customers avoid derating cranes. MES, which builds the platforms in Berne, plans to expand the lineup with the larger MES-C9, rated for a 1,200-ton deck load.

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