Concrete plinths for upcoming wooden deck

Now furrows are dug and concrete plinths with adjustable shoe deployed for the wooden deck. A excavator dug two furrows  of about 1 meter deep and 16 meters long. In these furrows a layer of 0-18 gravel was placed and packed with a vibratory plate and accurate height was measured by means of the rotating laser with a precision to the millimeter.

Pictures of the concrete plinths and furrows