Lock & Weir

The Lock enables an all-time high tide appearance with substantial amenity gains in these stages of Marsden Cove. Jetties are closer to the revetment wall or edge of the property making structures less costly. Boat ramps can also be incorporated to avoid the need to transport trailer craft to the nearest public ramp and wait in the queue. Swimming from the front lawn is made so much easier.

About the Lock

The Lock mechanism is a technically sophisticated combination of concrete, stainless steel, gearboxes, sensors and computer equipment capable of comfortably transferring vessels of 20m in length, 6m beam and 3m draft. The Lock is attached to an adjoining 20m weir, with a level set 0.7m below mean high sea level. This enables an exchange of clean water with each tide cycle to maintain excellent quality seawater within the locked stages. Fenders, signals and safety mechanisms enable a hands-free operation. Two or three trailer craft can easily pass through in one cycle. The cycle time varies from high tide to low tide at 4 to 10 minutes. It also enables pedestrians to cross via a vertical bridge, where we ask property owners to give pedestrians right of way when accessing the Lock.

Property owners have access by remote key that is monitored and registered by MCCML.  Time, date, and photos are recorded each time a remote is used. The system logs what buttons on the remote are pushed and how many times they are selected for each entry.  We encourage only the skipper takes control of the remote on entry and exit.  

We also advise all Property Owners to undergo Lock Training before they use the Lock. Our trained Lock operators will take you through a training session on-site and ensure you are aware of how to operate the Lock. It is also the responsibility of the property owner to ensure anyone who they lend their Lock key to, also undergoes this training. Ultimately, it is the property owner’s responsibility to ensure this happens.