Many operating marinas cannot accept downtime. The engineer has to work with old and new side by side: existing floats keep carrying load while new modules are inserted section by section, and the connection detail must suit both systems.
Our approach splits the work into three phases: add temporary berthing on the outside first, then replace the main walkway in sections, and finally re-route power, water and fire services. Load paths are calculated for each phase so no temporary weak point is left behind.
Staging adds roughly 15% to component cost, but it buys zero downtime. For a marina charging by berth, that usually pays for itself.