What do curved retaining walls and stadium risers have in common? They're just two of the unique applications contractors have found for using slipforming technology. No longer confined to paving, curb and gutter, and median barriers, slipform pavers can be used on building projects when the costs of conventional forming are prohibitive or when tight deadlines rule out the use of formed members.

Slipforming curved concrete retaining walls to support the seating for an amphitheater at Riverfront Park, Salem, Ore., not only saved time, it produced a better end product and required less concrete. In Lima, Peru, a contractor used a slipform paver rather than hand forming for the risers of a soccer stadium, saving $200,000.