Hi all,
I have a ditch about 4 feet wide at the top, 2 feet wide at the bottom, and 2 feet deep. I put in a 18" double-headed plastic culvert pipe. I had some extra topsoil, and used that to backfill the ditch. I added about 6 inches at a time, tamping each new layer. It took about 4 tons of soil.
Now, I'm afraid I made a mistake using the topsoil. I was planning on putting a couple inches of gravel on top, as vehicles will be crossing this ditch. If the topsoil will settle and pack eventually, meaning I'd need to add more gravel, I'm okay with that. Will the topsoil ever stabilize, or will this continually give me problems? I'll dig everything out and replace with gravel or fill dirt, if I have to, but not looking for extra work if it's not necessary.
Any input is greatly appreciated.
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