Tanana River - Big Delta, Alaska, USA

All photos by Richard Ehrenberg. Please do not reuse without permission. Rick notes this bridge "carries 1.5 million barrels of North Slope oil per day. The pipeline just lays on the crossbeams, free to slide left to right on Teflon pads, with "pillow" bumpers limiting the movement. This is how they deal with the expansion and contraction in the 48" pipe. The whole pipeline is like this anywhere it's above ground."




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