Cold regions are typically defined as those areas where, for the coldest month of the year, the mean temperature is 0º C. For the northern hemisphere, this demarcation generally coincides with the 40th parallel. Cold regions are further subdivided into regions of frost penetration into the ground, areas of sporadic permafrost (permanently frozen ground), areas of discontinuous permafrost, and areas of continuous permafrost.
PND’s Alaskan roots have enabled the company to be a preeminent firm in the market of cold regions engineering, covering all subdivisions of the spectrum. Company founders were deeply involved in the engineering of the 800-mile Trans Alaska Pipeline from Prudhoe Bay to Valdez, Alaska, one of the modern marvels of present time. PND has continued our service of cold regions since that time with projects throughout Alaska, Canada, and northern Russia.