Using an existing plag pole base foundation for new pole
Using an existing plag pole base foundation for new pole
(OP)
I have an existing 80' steel flag pole. 14" at the base and tapers to 3.5" at the top. The base of the pole is encased in an 8' deep sleeve, 18" dia. with 2" bank sand filling around the pipe. The base is encased in concrete and the pedastal is granite with a granite platform and steps around it(20' diameter). The pole needs to be replaced and was wondering if re-using the base is practical. It appears the wedges could be removed and the pole removed. I was thinking water jetting and vacuum truck could get the sand cleaned out of the sleeve and a new pole installed with a new grounding apparatus. Has anyone done this or have any suggestions. I was hoping to reclaim the granite and have the final product look as it did, just a new pole. Thanks!






RE: Using an existing plag pole base foundation for new pole
Be careful though with the trucks or bobcats and construction loads on the 20 foot dia decorative granite. The crane loads and heavy wheel traffic will crack the granite easily. Keep the crane and its support jacks well off of the granite. Same with concrete trucks if you refill the holes.
RE: Using an existing plag pole base foundation for new pole
RE: Using an existing plag pole base foundation for new pole
RE: Using an existing plag pole base foundation for new pole
RE: Using an existing plag pole base foundation for new pole
RE: Using an existing plag pole base foundation for new pole
Page 14 - Foundation Details show an embedded type foundation, called a ground-set flagpole. There are guidelines for foundation depths and other details. We note that besides the 4 hardwood wedges shown, the there should be "Waterproof compound 2" deep above the wedges". This is to keep water from entering the "tamped dry sand". Make sure that you check that the 4 steel centering wedges at the bottom of the pipe (per the detail) are not damaged. Might send a GoPro camera down the hole to inspect the condition of these wedges. They are supposed to be welded to the pipe (which may be a corrugated steel tube).
I suggest that you obtain this publication. Note that there are some recommendations that you should be aware of.
Good luck.
RE: Using an existing plag pole base foundation for new pole
RE: Using an existing plag pole base foundation for new pole
RE: Using an existing plag pole base foundation for new pole