Which oil pipeline in Alaska has some parts raised on stilts to prevent the permafrost from melting?

Trans-Alaska pipeline

The pipeline is the Trans Alaskan pipeline. Although insulated and on stilts it has radiators at regular intervals along it, to maintain the warmth of the crude oil to keep it flowing. It is also on silts to allow migrating Caribou to travel North during summer months and also to allow the pipeline to move during earth tremors, as Alaska is in an area prone to earthquakes.

Trans-Alaska Pipeline 

Trans-Alaska Pipeline

To keep the permafrost from melting, parts of Alaska's oil pipeline, known as the Trans-Alaska Pipeline System (TAPS), are elevated on stilts. In order to reduce the pipeline's impact on the frozen ground and preserve the permafrost's stability while safeguarding the ecosystem, the pipeline was built with raised supports in some locations. The purpose of this design is to lessen the possible negative effects that thawing permafrost in Alaska may have on the environment and ecology.

Trans Alaska pipeline

The Trans-Alaska Pipeline

The trans-alaska pipeline is owned by a private company called the Alyeska Pipeline service company and is an 800mile long pipeline, which spans the north to south coast of Alaska

The Trans-Alaska Pipeline System (TAPS) has some parts raised on stilts to prevent the permafrost from melting. The pipeline, which stretches approximately 800 miles from Prudhoe Bay in northern Alaska to Valdez on the southern coast, was constructed with elevated sections in areas where the permafrost is particularly sensitive to temperature changes. By raising the pipeline on stilts, it helps to keep the ground underneath cooler, reducing the risk of permafrost thaw and potential damage to the pipeline.

Trans-Alaska Pipeline (TAPS)

Trans-Alaska Pipeline

The Trans Alaskan Pipe Line

The Trans-alaskan pipeline

Trans Alaskan Pipeline

The Trans-Alaska Pipeline System (TAPS)