This summer, I discovered a smallish sinkhole that developed right at the corner where my driveway meets the garage and the front sidewalk. Pictures here, here
As far as I can tell, the hole is about 2 feet deep - the foundation of the garage prevents it from going too far back under the garage itself. It doesn't appear to have grown since I discovered it, but it has been very dry here the last couple of months.
I will be correcting what I believe to be the source of the hole by installing gutters on the house - I'm pretty sure there was excess water pooling around and wrapping in front of the small garden seen in the first pic which was the source of this washout.
The question is, I'm not sure who I should be calling to fix this? Or could I even fix it myself? The driveway needs to be repaired in this spot but driveway repair guys don't deal much with structural foundations, and vice versa. Any advice would he helpful, bonus points for specific recommendations in the northern Twin Cities suburbs. I want to get this fixed before winter. Other recommendations or ideas on what to do, how it happened, and how to prevent more are also welcome.
Potentially relevant details:
- House was new 10 years ago in a new neighborhood that was previously cropland. I'm the original owner and have not noticed any other issues, only the usual small basement and garage floor cracks. (This is
normal as the new house settles, right?)
- Soil content here is mostly slightly sandy clay.
- We are not too far from, but definitely above, the water table. There is a pond 200 feet behind the house with a maximum elevation of maybe 20 feet below the house.
- We do have a sump pump that runs only when it rains hard (presumably due to the lack of gutters).
Thanks in advance!