Outdoor Wood Furnace Info

All-Purpose OWF Discussions => General Outdoor Furnace Discussion => Topic started by: 12valve on February 21, 2013, 07:13:22 AM

Title: underground pipe under driverway
Post by: 12valve on February 21, 2013, 07:13:22 AM

So my question is should any extra precautions be made going beneath a gravel driveway?  Would hate to crush that pipe or damage the outer tile.

Title: Re: underground pipe under driverway
Post by: CountryBoyJohn on February 21, 2013, 07:23:14 AM

I am a civil engineer and design highways.  The general rule of thumb is 2' of cover over the pipe, and it will be fine.  That is, 2' of properly compacted earth fill between the top of the pipe and the bottom of your pavement (gravel.)

Based on what I've seen on this forum, you will be looking at 24" to 30" of depth anyway for proper depth.  Deeper if your water table is low enough.

I would recomend, however, that you sleeve the portion under the drive with a CMP, corrugated metal pipe, in case you need to replace it later or eventually pave your drive.  This will allow you to access this space at a future date, without having to dig up your drive again.  A 20' long section of 6" pipe is about $130 at Menards.  A small price to pay for never having to dig up your drive again.

John

Title: Re: underground pipe under driverway
Post by: Scott7m on February 21, 2013, 08:07:04 AM

 :post:

That sums it up nicely

Title: Re: underground pipe under driverway
Post by: 12valve on February 21, 2013, 08:34:36 AM

thanks for the info.