The talmadge bridge which spains the savannah river was rebuilt in the 1987.The port of savannah is one of the bbusiest american spot ports on the eastern seaboard from this point goods are shipped all over he world. Which is the most likely reason for rebuilding the bridge

to allow bigger boats to travel through the Port of Savannah.

Explanation:

The Talmadge Bridge was originally built in 1953. It spans across Savannah, Georgia, and Hutchinson Island. The total length of the bridge is 3.06 kilometers.

It was rebuilt in 1987 to allow bigger boats to travel through the Port of Savannah. The rebuilding was completed in 1991.

Before it was rebuilt, numerous big boats were unable to enter the Port, which translates to Savannah losing a huge sum of revenue that could be generated.

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.