I have a hole in my foundation that is letting a ton of water right into the crawlspace. I think it formed over several years from a gutter downspout that wasn't functioning properly (I plan on installing an underground downspout to fix the root of the problem).
The hole is about 2.5" wide, goes about 4" deep back into the wall, and is close to a foot tall (about 4" stick above the ground, and the rest down into the ground). Here are a few photos:
How do I fix this? Can I just simply pour concrete to fill in the hole? If so, is there special kind of concrete I need to use? Any other considerations?