Henuset pipeline designed and built the Polar Bear trencher 1 of 1 in 1982. At the time was the largest custom trencher ever built or one of the largest. 10 feet trenching depth. The adapters for the teeth were cast specifically for it as they each had Henuset name and a part number on them. 1250 HP Detroit, 16V-149 locomotive engine. There were 2 big hyd, Cylinders in the upper corners on each side. That were for raising and lowering the trencher wheel also designed for each section to come apart so each could be transported. The trench wheel placed in its own custom trailer by itself. With the Polar Bear tracked up on to a lowboy trailer

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