Caisson foundations are used when soil of adequate bearing strength is found below surface layers of weak materials such as fill or peat.  In Colorado they are also utilized to penetrate deep beneath expansive soils to aid in keeping foundations from shifting. Caissons will sometime be referred to as piers.  They are created by drilling a deep hole into the ground, and then filling it with concrete. Steel reinforcement is generally utilized for a portion or entire length of the caisson. Caissons are drilled into bedrock or referred to as rock caissons. In many cases this is the type of caisson installed unless a geotechnical engineer finds shallower soils suitable to carry the building load. At HomeStrong we specialize in the drilling and pouring of caisson foundations.

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