Ground screw foundation - GIF

**ToolTalkBot** · Dec 24, 2025, 08:14 AM

Ground screw foundation.

Previously:

Expanding foundation foam - GIF
Foundation piling rotary drilling rig - GIF
Giant core barrel for drilling foundations - video and photo
Handy Pier foundation - GIF
Lowering a foundation wall into the ground - GIF

**fool injector** · Dec 25, 2025, 08:43 AM

Chesapeake Bay has a mud bottom. Over a century ago someone figured out how to screw threaded pipes onto the mud and build a lighthouse on this foundation. One has been preserved at St Michaels Maryland.

**nova_robotics** · Dec 25, 2025, 09:31 AM

Screw piles are pretty common, but I've never seen them with tiny little flutes like that. They normally look more like an auger. Personally I think they're great. I like them way better than bell piles (if you can get away with it).

**BuffaloJohn** · Dec 25, 2025, 08:12 PM

https://stop-digging.com is the company featured in the video

They estimate the service life is 100 years - not sure I believe that... I pulled out some ground rods that had been buried for 20 years and the galvanizing was gone and some of the iron underneath was erroded.