Efficiency in motion. The McNeilus Bridgemaster is among the most productive, durable, and cost-effective, federal-bridge-compliant mixers. It’s a relentless workhorse that maximizes payload to meet your area’s weight restriction and specific state roadway laws. It includes most of the performance features of the Standard Mixer, plus the patented Bridgemaster load-distribution tag axle that allows higher legal payloads. Durability and productivity.