I installed the same tower but in soil a lot more stable. A 300’ run is a long
way and your costs will go up as more expensive hardline might be required.
Plus you might have to deal with local officials to dig under road.
Have you considered contacting a structural engineer to see what additional
bracing would be required? For instance, maybe pounding in a few small steel
I-beams into the sand just at the waterline down in a hole? This would provide
anti-torque bracing due to high winds on the tower. Supply the engineer with
the original engineering calculations that US Tower will provide. They sent
them to me, free of charge.
Dick, K0CAT
Sent from my iPhone
Richard (Dick) Blumenstein
E-Mail: rcblumen@centurylink.net
> On May 27, 2020, at 6:52 PM, Tim Duffy <k3lr@k3lr.com> wrote:
>
> Hi Don:
>
> I recommend that customers consult with the engineers at the tower company
> when they are thinking about making changes to the designed specifications
> for the foundations.
>
> There is no room for mistakes or an unsafe installation. Call US Tower and
> let them guide you.
>
> 73
> Tim K3LR
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Don
> Solberg
> Sent: Wednesday, May 27, 2020 6:45 PM
> To: towertalk@contesting.com
> Subject: [TowerTalk] Looking for some foundation advice
>
> I was planning on purchasing a used US Tower HDX-572, 72 ft crank up
> tower. It looks like I may have run into a problem with the foundation. I
> had some trenching done today for a new well and discovered that the ground
> water level is just slightly lower than 6ft. US Tower specifications call
> from a 7.5 foot deep hole. My soil is mostly sand, so in addition to not
> being able to go down 7.5 ft, I probably also want to make the foundation
> wider.
>
> Is it practical to put up the 72ft tower with a wider pad, or should I look
> at getting a smaller 55ft tower? Another alternative is find another
> location for the tower. I have about a 10 ft hill on another property that
> I own across a gravel road. This would most likely eliminate the ground
> water problem but I would have about a 300 ft cable run and I would have to
> trench across the town's gravel road.
>
> I am looking for recommendations.
>
> 73,
>
> Don K9AQ
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