yard flooding chaos - French drain or dry well?

I’d lean toward a French drain if there’s a sensible place for the water to discharge; that seems to fit your DIY-simplicity priority. A dry well avoids needing an outlet, but only makes sense if the ground can take the water. Without either a workable outlet or suitable absorption, neither option is an easy fix.

When you say a French drain seems simpler to DIY, is it mainly the installation itself, or the idea of avoiding a separate place to route the water? Those could point to different choices even before comparing how well the yard drains.

Those are different kinds of “simple.” If I meant fewer steps in the project, a French drain might feel more approachable; if I meant not having to find a destination for the water, that preference could point the other way, since the drain still needs somewhere suitable to discharge. I hadn’t separated those in my opening post.

If avoiding the hunt for an outlet matters more than minimizing the digging and assembly, I can see a dry well feeling simpler overall. But that preference only holds if the ground can absorb the runoff; otherwise it removes the outlet problem without solving where the water can go.

For someone weighing a lasting project, would you treat a yard that floods only in an exceptional downpour differently from one that regularly turns into a lake after ordinary rain?

Yes. If it happens only in an exceptional downpour, I’d be slower to commit to a permanent project; if ordinary rain regularly leaves a lake, the recurring problem seems more worth addressing. Frequency can tell you how pressing a lasting fix is, though it doesn’t by itself decide between a French drain and a dry well - the outlet and the ground’s ability to absorb water still matter.

Frequency is only part of how pressing a fix feels: even a rare flood could deserve attention if it causes serious damage, while frequent but shallow pooling might be less urgent.

For example, if runoff tends to gather in one low spot, a dry well might suit that layout if the soil can absorb the water. If water instead travels across a broader stretch of yard, a French drain might make more sense if there’s a suitable place to send it. The layout could matter as much as which project seems simpler.

Does the water tend to collect in one low spot, or spread across a broader stretch of the yard? That layout could help show which option is a better fit.

I’d watch during and after a rain where water first gathers and whether it keeps moving across the yard or settles in one place. That pattern may clarify the layout, though I wouldn’t treat it as decisive by itself: a low spot and a suitable place for the water to go still matter.