Things You'll Need
2 boards, 2 by 4
Light poles are so high because the higher they are the more ground they can illuminate. Light poles along the highway are spaced to give the maximum visibility possible for motorists. In parts of the United States installation of light poles as high as 100 feet have become commonplace. However, 20-foot poles are less expensive and easier for a work crew to install. Higher light poles usually require larger bases. Whether 100 feet or 20 feet, the light pole has a base made from poured concrete.
Dig a square hole with an auger 18 inches deep and 1 foot wide. Shovel gravel into the bottom of the hole for drainage. Mix concrete with water according to the manufacturer's directions. Pour the concrete mix into the hole.
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Lift the light pole with a crane and position the end over the hole filled with concrete.
Guide the pole into the hole. Have 2-by-4s ready to brace the pole.
Set a bubble level on the side of the light pole to check its vertical positioning. With the pole vertically set, wedge the 2-by-4s against the light pole for support.
Shovel dirt around the pole after the concrete has dried. Tamp the dirt with a shovel.
Once the concrete has set the light pole can be wired.
Workers guiding the pole need to be aware at all times that the crane could lose control of the pole and it could fall to the ground.
When erecting the light pole, make sure the crane driver can hear directions such as when to release the pole. Accidents can cause serious injuries and death.