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LOCKFILL is a quick tool developed by Deltares, enabling the assessment of a shipping lock's performance, in terms of levelling times, forces on vessels and flow velocities on the approach harbour bed.

LOCKFILL computes the longitudinal forces on the ship which are caused by translatory waves, momentum variation, skin friction, the filling jet and a water density difference, based on a one-dimensional approach. The program allows the calculation of various filling and emptying systems in the heads of the lock, e.g. openings in the lock gates, pipes through the gates fitted with butterfly valves, lifting gates or short culverts in the lock head walls. Read more.

The software has a graphical user interface allowing easy input manipulation and showing the computation results in graphs and key indicators. Alternatively, the program can be run in command line.

On this portal you can find the program, its manual and relevant documentation.


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Fixed write permission problem part 2

Several users complained that Lockfill still gave problems regarding write permissions of the Lockfill work directory. The latest bugfix release should attend to this problem. The working directory has been moved to another location, namely %ProgramData%. This should fix the problems many people have been experiencing. Please contact us via the "Get help" page if you still experience problems running Lockfill.


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