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Step 1
Choose a time frame of at least 15 consecutive days that the night temperatures are below 0 degrees F. This will make certain that the ground is completely frozen all the way through and not just in few layers.
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Step 2
Pick a place for your bridge that is level or almost level and has a low flow. Or the area can be completely dry or completely frozen. Any of the places mentioned will do the trick.
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Step 3
Put snow that does not have dirt or any other debris in it, into the channel to back the water up. Add water to the bridge so it will ice over. Make sure you do not add any limbs, sticks, or debris to the ice because this can weaken the structure or cause the stream to be blocked once it begins to flow again.
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Step 4
Continue the above mentioned process until the bridge reaches the length and depth you need it to be. It should be designed so that the traffic meets it at a level approach, but also strong enough to support the traffic you are expecting to cross it.









