The Heavy Bridgelayer is the largest and strongest of the portable devices. Like all Bridgelayers it is used to deploy a 30 meter bridge weighing 6 tons to cross rivers, terrain of up to 30 meters apart and 30 meters in differing heights, or other difficult terrain. The Heavy Bridgelayer can support 45 tons with ease and up to 90 tons of weight crossing it at any one time before collapsing.
- Total Warfare, p. 130-131
- Tech Manual, p. 344