Hi, I am seeking some guidance on identifying the source of some water infiltration we are seeing in our basement. Here is a brief timeline/list of facts pertaining to the infiltration, which may or may not be helpful: The infiltration is occurring in a storage room built out underneath the front porch of our 1927 home. The storage space is accessible only via a door in the basement. The walls and ceiling are concrete, with wood paneling along the walls. This past winter we had an issue with water infiltration coming through a crack in the floor, near to one of the walls. We identified the cause as an overflowing rain barrel that resided just outside the wall at the spot where water was appearing; we emptied and removed the rain barrel, reconnected the gutter drain, and put down a couple of bags of pea gravel. This stopped the water infiltration and for several months we saw no water infiltration in the storage area. Over the past couple of weeks, we have once again begun seeing water infiltration coming up through a crack in the concrete; this time however the water is coming through a *different* crack in the floor, further away from the wall and closer to the center of the storage room. The infiltration is very slow, and noticeable mostly after a rain storm. There is no drain in the storage room floor; it is simply concrete. In terms of trying to determine the source/cause of this, I've tried to ascertain what has changed over the last month or so that might have led to this, and am honing in on a new sidewalk that was put in in front of our house last month. We have a slightly elevated front lawn with an approximately 18" stone wall across the front. There are three drainage pipes that lead from the lawn and open at the base of the wall. In the course of the installation of the new sidewalk, one of the drainage pipes--the one closest to the center of the house--was nearly completely sealed off. If you can imagine a line running from where the sealed drainage pipe is to the porch/storage area, it is nearly perfectly aligned with the location of the crack in the floor where we are now seeing water infiltration. My suspicion is that after a rain storm, water is backing up in the drainpipe towards the foundation of the home, where the increased water table pressure is leading to the infiltration. I have attached two photos here--one showing an unblocked drain pipe, and one showing the pipe that has been sealed off. My question is twofold: one, how likely is it that the sealed drainage pipe is indeed what is causing the infiltration in our storage room? And two, if that is not the likely culprit, what else might explain the recent appearance of water infiltration in the center of the floor underneath the porch? Thank in advance to everyone for the help.