If you prefer a video or want to see some of the construction techniques, the B1M recently did a video on Portland's new airport: https://www.youtube.com/watch

If you prefer a video or want to see some of the construction techniques, the B1M recently did a video on Portland's new airport: https://www.youtube.com/watch?v=MRAkjoUdN_I https://www.youtube.com/watch?v=MRAkjoUdN_I Pretty impressive how they pulled it off while minimizing impact on airport operations.