Feature Article
Jul 30, 2022

Permafrost Degradation Impacts on the Trans-Alaska Pipeline

Publication: GeoStrata Magazine Archive
Volume 26, Issue 3

Abstract

The Trans-Alaska Pipeline System transports warm crude oil over 800 miles through a 4-ft-diameter pipeline (i.e., the “mainline”) from Prudhoe Bay on Alaska's North Slope to the Valdez Marine Terminal on the Gulf of Alaska. TAPS traverses three major mountain ranges, several active faults, and continuous and discontinuous permafrost terrain. Permafrost is generally defined as ground that remains at or below 32°F for at least two consecutive years. Permafrost with temperatures between 32°F and 30°F is generally referred to as “warm permafrost,” while permafrost with temperatures below 30°F is referred to as “cold permafrost.”

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Go to GEOSTRATA Magazine
GeoStrata Magazine Archive
Volume 26Issue 3June 2022
Pages: 34 - 41

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Published in print: Jun 1, 2022
Published online: Jul 30, 2022

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Wendy Mathieson
P.E.
Vice President, Shannon & Wilson; Seattle, WA
Peppi Croft, M.ASCE
P.E.
Ph.D. Student, Permafrost Lab, Geophysical Institute, University of Alaska; Fairbanks, AK

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Cited by

  • Review of the Impact of Permafrost Thawing on the Strength of Soils, Journal of Cold Regions Engineering, 10.1061/JCRGEI.CRENG-727, 38, 2, (2024).

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