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Because proper installation of a concrete pad requires considerable preparation before the concrete is poured, this is a project best left to experienced concrete contractors. 1  The average minimum cost per square foot for a concrete pad is $1.37.  The average maximum cost per square foot for a concrete pad is $1.77.
Under no circumstances should a city pour a slab of concrete to build temporary ramps as the funds would be much better spent building a permanent concrete skatepark to begin with. Most concrete skateparks will cost between 20 and 25 dollars (USD) per square foot to build.