2009-10-062009-10-061989https://hdl.handle.net/10365/6326The topic was the performance of irrigation pipelines buried within the frost zone. The Carrington Research Extension Center was created to provide research on the advancement of both private and public irrigation development in North Dakota. Underground irrigation is the most direct route of water from point of delivery and will not interfere with field operations. Seepage and evaporation losses could be eliminated. Various types of pipes are discussed in this article. The greatest concern regarding any underground irrigation system in North Dakota is its’ ability to not freeze. The three most factors affecting 'frost heave' were included in the article.North Dakota State UniversityArticle