{television} extreme engineering; widening the panama canal (2004)

One of the busiest waterways in the world, the Panama Canal lets cargo ships and other maritime vessels shorten their routes by 50 miles. But the passage has become congested, and boats have grown too large for it to accommodate them. This installment of the Discovery Channel series chronicles engineers' efforts to expand the lock chamber -- a grand scheme that will require the ingenuity and brilliance of the channel's visionaries.

ireviewnetflix.com rating: *** A very good episode of Extreme Engineering looking at both the expansion project as well as the original project.