monitoring exterior drainage

NeverDie

Senior Member
Does anyone here electronically monitors their exterior drainage, such as catch basins and the like, to detect problems such as blockages or overflows?  About once in every 10 years or so my region receives 12" of rain in 24 hours, and we're overdue for the next one.  Such a rain has the potential for causing serious erosion damage.  Presently, I'm adding a swale and enlarging an underground drain pipe's diameter so as to hopefully avoid a worst case scenario.
 
It's said that one should go out in a rainstorm from time to time to verify that one's home drainage is working properly--that it's the best way to "see what's going on."  I'm therefore mostly wondering if there's a way to automatically do equivalent checking without needing to go outside in a rainstorm, especially if it's lightning (which, around here, it most often is while raining).  The closest thing I've read is people monitoring their sump pump wells, but that's a little different.  With outside drainage it would payoff most if it could help with early detection and warning of future failure, though I'm not sure if that's even possible.  Anyone already doing anything like that?  
 
Going outside during a rainstorm is on my list of things to do, to check the gutters, and the HVAC condenser pad area (silted over the last 20 years, cleared it off last weekend). Cameras might be a good option, to keep a regular eye on the exterior.
 
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