I've done this for all my trails, through the lower muddy parts I put them about 6 inches thick then the swampy areas I put down small sticks/logs across and coated it with about 4 inches of chips. Works great and no problems holds up to tractors, quads, and dirt bikes no problem. The bad is when the swamp floods some unpacked chips float off, but I just reapply some then. I put them down using a manure spreader with the beaters unhooked.
I reapply chips every winter but only about 2inches, only in winter cause I can see what I've done and keeps trespassers with snowmobiles off