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1-6 of 6 messages
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Antenna requirements and California Building Code?
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by K6CMJ on October 20, 2009
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I want to install an antenna tower on my property in Escondido, CA. My city's buidling permit section requires all structures to conform only with the California Building Code, no other local restrictions are present. Does anyone have a copy of what is required to install a tower under the Ca code? I've looked through the code and can't find anything, although I've probably just overlooked it. I'm looking for info on setback, structural design, and height. Thanks.
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RE: Antenna requirements and California Building Code?
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by WB2WIK on October 20, 2009
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I've installed several towers in southern CA and have towers at my present location.
The CBC is not specific on many of these things, so you can look for a long time and not find what you're looking for.
What I've found is the best approach is to:
1. Secure certified blueprints and specifications for the tower in question, including all foundation requirements specified by the manufacturer.
2. Pick what I deem to be a suitable site on the property for installation.
3. Apply with the city or municipality for a building permit for the tower, pay the applicable fee.
4. Ask for Engineering Inspection prior to construction to assure the installation will be approved -- much easier to find this out in advance, rather than have it disapproved after it's done! Ask the engineer if a foundation inspection (base/concrete or even excavation) is required. If so, complete that step prior to assembling the tower on its foundation.
5. Proceed with installation. When it's done, call to ask if a final inspection is required to complete the permitting process.
None of this is complicated. Here in L.A., it all happens by rote once you apply for the permit. They often waive inspections and just approve by the plans.
It pays to have a signed permit, though...can be trouble later if you don't have one.
In some places, a permit for a tower under a certain height isn't even required. But that information is NOT in the CBC...it's by municipality and zoning ordinance.
WB2WIK/6
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RE: Antenna requirements and California Building Code?
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by N5LRZ on October 21, 2009
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You might try a visit to your city and or county building permit office and inquire as to details and legal permits required.
OR perhaps a phone call to the permit offices.
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RE: Antenna requirements and California Building Code?
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by K6CMJ on October 21, 2009
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Thanks for the info. I certainly will go to the city and inquire about the permits etc. Right now I'm designing the structure, and just wanted to get an idea of the requirements. Thanks again!
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RE: Antenna requirements and California Building Code?
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by WB2WIK on October 21, 2009
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Designing what structure?
It's impossible to get a permit (if one is actually required -- this varies) for a homebrew tower; you need P.E. stamped blueprints from a manufacturer.
What part are you designing?
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RE: Antenna requirements and California Building Code?
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by KE5MMT on October 22, 2009
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I'm an Architect and am not registered in California so I can't speak to the City of Escondido or the State of California's requirements; but, I just put my tower up in Dallas, TX this past June and I would suggest:
Ask the City what building code they've adopted. If it's a standard code such as the the 2009 IBC be sure to ask if there are any local amendments to it. Get copies of both.
Setback information is often found in the Zoning Ordinance instead of the Building Code so you may want to check with the Planning or Development Department for that info. Setback requirements are often contained in your property's CCR's so check that too.
As other's have stated, do not try to play fast and loose with the rules. Follow them, all of them. You'll probably need an engineered foundation plan and wind load calculations, you can find out from the City. You can often get these from the tower manufacturer but they're may be extra charges for them.
Even though I frequently submit drawings to the City and deal with the local Building Department, I still had an ARRL volunteer counsel review everything before I submitted my drawings to the City for my building permit. When the neighbors complained, and a few of them did, I already had the bases covered with the City.
Do not try to short cut or circumvent anything. As my VEC said "there's a huge difference between giving someone the power to shut you down with a 5 minute phone call to the City because you tried to get cute as opposed to putting their own time and money at risk and very likely losing because you've followed the rules, crossed your t's and dotted your I's".
Good luck!
Everett
KE5MMT
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