core drilling again

Discussion in 'Landscape Lighting' started by Mark B, Aug 8, 2008.

  1. Mark B

    Mark B LawnSite Bronze Member
    Messages: 1,020

    WOW another picture. YIPPIE...Not to take anything away from the geeks core drilling. I did this a few yrs ago. I just figured out how to post pics. Yippie
    First let me say the owner wanted those fixtures like that. SO he gets what he wants.

    This is the last light to the picture below


    But as you can see there is a paved parking lot. Then the building. So I had a gut feeling that I could core drill the holes. Then I hoped there was 57 stone under the concrete. So I took 30ft of 3/8" thread rod drilled a hole on the end so I could tie the string to it. After the holes were drilled. I took 30ft of 3/8" thread rod and started going under the concrete with my cordless drill till the last hole. Then I tied a small string to the thread rod and pulled it back out. Once I had a small string I connected the leads to the string, then pulled the leads out.

    The core drilling was the PITA. I have had alot of core drilling experience in the past. So I knew what I was doing with it. It took about 6hrs to do all the holes. Some places were deeper then others, it also seemed harder concrete in some places.

    The fixtures are cast well lights, so there is a 25' lead on them. I added some wire to the furtherest fixture so I could make the connection on the edge of the concrete.

    The last picture is on the same job, but these lights were easy. I used a 4' drill bit.

    I really enjoyed this project. It turned out great. It was a good fun challenge. I'm proud of completing this job. It was one of those I think I can pull this off. It turned out great I think.
  2. Chris J

    Chris J LawnSite Silver Member
    Messages: 2,843

    Interesting technique. I don't think I would have been so trusting that I would have been able to get from hole to hole like that. Nice work.
  3. Lite4

    Lite4 LawnSite Gold Member
    Messages: 3,187

    Nice. Chris you just bore individually to each hole from the outside sidewalk edge and run all of your wires on the outside of the sidewalk. Its only like a 3 or 4' bore. Easy peasy, mac and cheezy!
  4. jshimmin

    jshimmin LawnSite Member
    Messages: 99

    What tool / device are you using for the core drill?
  5. NightScenes

    NightScenes LawnSite Silver Member
    Male, from Kingsland, Texas
    Messages: 2,214

    Tim, I think Chris is talking about the sidewalk that is against the paved parking lot. That had to be drilled from the end, all the way down.
  6. Mark B

    Mark B LawnSite Bronze Member
    Messages: 1,020

    the lights on the side were the easy ones. The 3 lights that are along the paved parking lot was the hard ones.
  7. Chris J

    Chris J LawnSite Silver Member
    Messages: 2,843

    Yep, that's the one. The other walk would be a piece of cake.

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