No. Water drains well through crusher rock - it is actually what you use to create drainage passages - a simple French drain is just a ditch filled with crusher rock because the water will flow easily through the crusher and away from where you don't want it.
A berm is to exclude water so is usually heaped up dirt. My thick clay soil makes wonderful berms because it takes ages for water to penetrate it so it just flows elsewhere.
I just made a long post and the issue of water heading to the French drain is what is worrying me.
Pictures and a diagram will help.
If you want something that water won’t penetrate use Bentonite, it’s a clay product that packs in like cement. I used it on my well I had drilled, the guys poured heaps of it about 6’ deep up the grade level to prevent ground water from seeping into the well.

Gosh I love that stuff!
 
No. Water drains well through crusher rock - it is actually what you use to create drainage passages - a simple French drain is just a ditch filled with crusher rock because the water will flow easily through the crusher and away from where you don't want it.
A berm is to exclude water so is usually heaped up dirt. My thick clay soil makes wonderful berms because it takes ages for water to penetrate it so it just flows elsewhere.
I just made a long post and the issue of water heading to the French drain is what is worrying me.
Pictures and a diagram will help.
Don’t use cleaned crusher run, use regular limestone crusher run which has particle sizes up to 3/4”, and it packs in like cement.

The cleaned crushed gravel (crusher run) is lovely and looks great as a walkway or driveway but yep drains really well so no good for backfilled location. You can use that with your tile drain (aka French drain).

Water is the bane of my existence here, I am in an area classified as a swamp, it’s flat so water sits here, my only saving grace is that the soil is sand to about 50’ down. So it will dry fast, thankfully my run is dry, and I have the big trees which are amazingly good at keeping some of the soils dry, who knew trees where so good at that?
 
Drainage tax - Piglet and her rather svelte butt.

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Holy cow 😳😳😳

That can’t be good for the basement walls 😳
It was a very old house - the main beam supporting the floors was an unfinished tree trunk - not squared off and with the branch stubs still visible.
The basement walls were really just big rocks piled up on each other.
 

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