5 columns with 4,000 psi concrete and heavy steel needed to replaced. 4 feet of the existing steel needed to be preserved to serve as dowels for the new columns. Our solution was to wire saw a horizontal cut at the 4 foot line, drop the top, and break the remaining concrete leaving the rebar intact. Each wire cut was completed in about 15 minutes after setup. Diamond wire saw cutting is extremely flexible and provide Allied Coring and Demolition another arrow in the quiver when solving concrete removal problems.