Rainwater pipes running under/across garden where i was hoping to sink a trampoline

[SpaSushi]

Have promised the small people i would get them a trampoline. Back garden is narrow, not especially long, with an ~4x4m L' To the side at the back. I had planned to sink the trampoline in this L bit, tucked out of way.

Ive now pulled out the plans i had and i see there is a surface water drain line running across the back of the garden approx in the middle of the 'L' . Its taking water from the gutters on the garage which makes up part of boundary and carries on into the neighbours garden on the other side.

How deep are these drains usually? I need about 80cm deep hole for trampoline i think.

I can't sink a trampoline,now can i? 😭

Dig a test hole and see. You might get away with 80cm or a shallower hole and building up around it a little.

Could you make the trampoline hole a soakaway for the rainwater? That might also reduce your sewerage bill (a smidge)

@PeachPotato the pipe runs from my neighbours garage gutters across my garden and several neighbours along the road.

@Asdf12345 i think i will have a poke in the ground to try and see where it us and how deep.