tuckedfexas t1_jdrz7zl wrote
Everyone has a good start, corrugated sock pipe inside french drain etc etc. Thats great, but the water doesn't have anywhere to be stored until it can disperse.
With that slope, and your downspout connected you're going to need to dig a basin if you cant get rid of the water somewhere else. NDS makes a really easy to use product called a flow-well that I've used hundreds of times with great results. It basically just lets you dig out a big hole and it'll hold like 50 gallons by itself. You're still going to have to wrap it in good weed fabric, I would always just dig a big hole and then line the hole, drop in the flow well, and backfill inside the fabric with 4" rock to make an even bigger basin.
That water is just gonna fill up a french drain that doesn't have anywhere to dump to, they aren't magical unfortuantely.
putriidx OP t1_jds4umj wrote
Would it be fine to have another small box drain or something similar at the beginning of the driveway (maybe a channel drain if it can work) and have it connect to the current box drain and the downspout?
From where this box drain is I believe it connects to another one or two downspouts and travels down a pretty steep slope and off into my backyard in a area we don't use. It currently can handle the water it does get even when this rock area is working so it may not be overrun..maybe.
tuckedfexas t1_jds5e03 wrote
Oh gotcha, I misread another comment and thought you didn’t have anywhere to run the water. You can throw a drain box in, they make “socks” for them that are going to fill up pretty quickly with sediment but it’ll do the job for one area. You’d still have to connect it with solid pipe to the other run
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