If you really want an intake that will likely survive deep water, you're going to need something more like:
Is the height of the bottom of the chassis the maximum height I can
drive through without hydrolocking? (This question is bordering on
Would I hydrolock, even though the intake is really high?
You might think that you're in the clear for deep water because, you know, intake is pretty high and all. However, are you certain that that's as low as your intake tract goes?
In my car, the intake is in approximately the same place. The air then passes down near the passenger's front wheel through a silencer and then back up to the air filter. In the silencer, there's a little hole to allow the occasional splash water a place to drain. Obviously, if water can get out, it could potentially get back in.
I would say that your maximum depth is the lowest point of the intake tract. However, I provide no warranty on that estimate. If you're really worried, find another route.
Would there be any risks of other mechanical failures (like destroyed
Yes, of course. It's very common to end up with water in the spark plug holes, especially in an inline engine. If you look, your battery is lower than that intake point. At a bare minimum, you should expect something dramatic if you submerge your entire battery while trying to run the car.
Even better, if the water is higher than the tops of your wheels, I'd expect the car to start floating (or at least getting light and scary). If you spent too much time in a puddle deeper than that, I'd start worrying.
And, as always, never drive into flowing water if you don't know the depth and the current. People die like that disturbingly easily.