[amorphous]

"In 2015, the Calcasieu River Bridge became 63 years old. With over 600,000 bridges, the average bridge age in the United States is 42 years old, with one in nine rated as deficient. Louisiana has a total of 13,050 bridges, and 1,827 (14%) are considered deficient. 1,963 bridges (15%) are considered functionally obsolete.

It had been decided the bridge needed replacing since before 2002. There are several areas of concern including the age of the bridge, the low bridge ratings, steep grades, traffic congestion, amount of traffic that has been estimated at around 55,000 vehicles a day, low vertical traffic clearance, and contamination. These contributing factors rank the bridge as "a dangerous bridge" and 7th in the nation in need of replacing.

https://en.m.wikipedia.org/wiki/Calcasieu_River_Bridge

[deport]

Yep that old US Hwy 90 bridge replaced a ‘draw bridge’ on US HWY 90 located a
little to it’s south and called the Louisiana Memorial World War II Bridge in June
1951. Then it became the IH-10 bridge when the IH-10 was completed. Later a
bypass to the South was built and it’s called the IH-210 bridge. These all crossed
the Calcasieu River.

https://en.wikipedia.org/wiki/Calcasieu_River_Bridge