Because of erosion, [The Mississippi River-Gulf Outlet Canal] was as much as three times as wide as originally constructed by 1989. When MR-GO was built, the channel was 650 feet wide at the surface, the average width is now 1,500 feet.And adds:
It's only 16 yars old, and erosion has tripled its width!No no no -- it was three times as wide (as originally constructed) by 1989! The sentence before the paragraph you quote is, "Construction was completed in 1965."
OK, so that only increases the time it took from sixteen years to 24, but still... The canal is, as of our writings, 41 years old.