Concrete core drilling advice

Cut vertical slots in the curb and knock out a piece, set your pipe and either mortar a piece of granite back into position or pour a small bit of concrete.

I had a 5" hole drilled for $100 through 8" of concrete. Might be worth it to call and expert as they will have probably dealt with the situation before.

On Thu, 30 Sep 2004 06:14:14 GMT, "Eric Schumacher" vaguely proposed a theory ......and in reply I say!:

remove ns from my header address to reply via email

Sometimes the political OT is preferable.....

***************************************************** I know I am wrong about just about everything. So I am not going to listen when I am told I am wrong about the things I know I am right about.

"Don't raise the drawbridge, Lower the river."

Simple. You dig out a hole in the dirt behind the curb, and drill the concrete with the diamond core saw from the back side. Then the slope of the gutter swale won't be in your way at all. ;-)

Plus, from the back side of the curb you won't see the hold-down hole, it'll be buried - some concrete drills are held in position by drilling a 1/2" hole and using a RedHead anchor to clamp down the baseplate. Makes for a rock-steady 'horizontal drill press' effect, but then you have to abandon the anchor in place.

If you have a solid concrete sidewalk right up to the curb, you'll have to saw-cut and take up a piece of it anyways to run the drain pipe out from the yard. The cut section will just have to be a few inches wider to get the core drill back there.

Oh, and don't mix the hammer function with a diamond core bit, unless you have an urge to discover the replacement cost for a diamond core bit. Hammer with a carbide bit, drill with diamond...

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Even construction guys don't drill curbs themselves. It's cheaper to pay a concrete cutting & coring company to do it for you..... to save time, money & wear on your body..... and to have it accepted by the inspector.

Cut & patch the curb.... looks like hell when the weeds pop out the patch ...... Cheap? Not really ...... depending on where you live, you could end up paying a licensed & insured contractor to replace a section of curb for you ..... and then drilling the new curb..... which is in the public right of way, doesn't belong to you & is not on your property.

It's a lot better to just write the check.

Curb?

As to the drilling, others have given some good advice. Around some areas of the country if you cut/break the sidewalk or curb that is considered public, they often jump on you like a ton of bricks. It's one of those things where the sidewalk can be falling apart from roots but if you touch it you have offended the public works guys. Not a big risk but I'd cover your backside anyway as the potential fines can be as high as the cost to replace many feet of curb or sidewalk.

If it's your own curb, ignore me and have at it :)

Koz