Abstract: A unitary bridge for attachments to hollow concrete structures, specifically, concrete poles, comprising at least one hollow tubular member spanning the diameter of the structure, having first and second ends embedded in and open to the opposite sides of the poles' walls. The tubular member is internally threaded a sufficient distance from the first and second ends towards the center of the pole to accommodate a bolt, and passes through and is attached to at least one flat vertical support member embedded in the wall at an angle sufficient to conform to the shape of the wall. Preferably, the tubular member passes through and is attached to two such support members, each embedded in opposite sides of the wall. Also embedded in the wall can be multiple annular components, such as helical wire springs or annular bars, and vertical tension strands for structural support.