My new home has an area where all of the water from the lawn like to collect at the bottom of a hill. It is an old logging road near the main road. As it is filled with water, I was waiting to put in some drainage. I have given up on this ever happening. Now that the ground is frozen can I dig a trench a little easier? I was just going to trench a foot wide trench and put in drain (pvc with holes in it) and cover with drainage rocks. A couple of questions... Will this work? I have some big rocks that are about 5-inches a piece and some that are an inch and a half or so a piece. Which ones should I use? THank you in advance for your advice.