I'm a civil engineer, soil compaction is still critical for any grading fill and will continue to be important. One of the biggest issues though is that it can

I'm a civil engineer, soil compaction is still critical for any grading fill and will continue to be important. One of the biggest issues though is that it can be really hard to compact native material to the required spec. It has to be perfectly within a narrow window of moisture content +/- just a few perce t to achieve full compaction.