Re: Building a deck near a rock quarry
You would build it to modern seismic standards (to withstand an earthquake), which is one of the things that your local building codes most likely address. Blasting at the quarry is no different than an earthquake.
As long as you build according to code your deck will be just fine. Construction methods will include attachment to the structure (to avoid separation between the deck and house during a seismic event or due to settling or other earth movement) and posts bolted to concrete piers that extend to mineral soil below the frost line, and a minimum of 18" depth. If you are concerned about movement, go deeper. Drive piling if you are really paranoid.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.