I see one mistake, Feeley St goes right through a building, but if you look at the map closely, you will see that the building is under construction and likely has not been reported to USGS for map corrections yet. Yes, you found a mistake, but it takes at least a year for those changes to be made to any map.
I found about four streets, all with buildings that have been constructed in the last three years. This is normal and not Apples fault. There are streets local to me that have existed for five years and still not on Google Maps. Some things are out of any map makers control, this is one of them. It's also possible that Clemson has not reported these changes to the Government for map adjustments.