It is about 0.33 m deep.
just that: the sand pit.
a sand pit
13-17in
13-17in
Two events in athletics use a sandpit: the long jump, and the triple jump.
a stretch with a sand pit a at the end
As far as I know, it's sand.
A jump is measured from the foul line to the first spot where the athlete touched in the sand pit.
Look in the yellow pages for Sand and Gravel and ask for washed sand. You can buy it by the cubic yard.
These are the measurements of the average pit not an Olympic sized one. 2.75 meters wide and 9 meters long (just the sand pit) not including the runway
A form pit the one's one jump in with bike's and shuff is about 2 m deep.