Measuring and modeling the lock 23

Measuring a kilometer long structure, buried 40 feet (12 m) below the surface of the St. Lawrence River...

Why tackle such a crazy project?

Detail aerial photograph of Lock 23 at Morrisburg
Aerial photograph of Lock 23

How to do it?

What measures to take?

Measuring Tools

What are the challenges for the diver?

How to take measurements in a site marked by the current?

How to fully carry out your measurement plan while making a safe dive?

Christian Rémillard underwater making a measurement.
Photo by Jean-Louis Courteau

To challenge oneself

While it would have been interesting to discover the ghost vehicle, Christian is not disappointed as he paddles towards the exit point.

He has found something much better…

Jean-Louis Courteau
Article “To challenge oneself” from the magazine En Profondeur.

Jean-Louis Courteau wrote an excellent article Se mesurer à soi-même (in french) in the magazine En Profondeur which tells the story of the genesis of the project and the personal challenges I had to face as a diver.

Se mesurer à soi-même. En profondeur, Vol. 16, nº 3 (2016), 35-37

The Making of of the Lock 23 3D model

Watch this video which gives an overview of the Lock 23 site, presents the process and the challenges of measuring in scuba diving as well as the creation of the 3D model. Taken from a presentation made at the 2023 season opening brunch of the H2O Lanaudière Diving Club.