Construction of the Trans-Alaska Pipeline System working for Alyeska or one of its contractors. http://www.alyeska-pipe.com/assets/uploads/pagestructure/TAPS_PipelineFacts/editor_uploads/Factbook09_6.30.pdf Construction of the Trans-Alaska Pipeline System The construction of the Trans-Alaska Pipeline System included over of oil pipeline, 12 pump stations, and a new tanker port. Built largely on permafrost during 1975–77 between Prudhoe Bay and Valdez, Alaska, the $8 billion effort required tens of thousands of people, often working in extreme temperatures and conditions; the invention of specialized construction techniques; and the construction of a new road, the Dalton Highway. The first section of pipe was laid in 1975 after more than five years of legal and political arguments. Allegations
Pipeline transport employee in Michigan. Although the Pipeline and Hazardous Materials Safety Administration (PHMSA) has standard baseline incident frequencies to estimate the number of spills, TransCanada altered these assumptions based on improved pipeline design, operation, and safety. Whether these adjustments are justified is debatable as these assumptions resulted in a nearly 10-fold decrease in spill estimates. Given that the pipeline crosses 247 miles of the Ogallala Aquifer, or 14.5% of the entire pipeline length, and the 50-year life of the entire pipeline is expected to have between 11 – 91 spills, approximately 1.6 – 13.2 spills can be expected to occur over