If a tile is in your city radius that gets the commerce bonus from the river, it counts for building the Hoover Dam or a nuke plant.
Build up your worker force ahead of time by building them in cities that have hit size 12 or even 6 if it doesn't have an aqueduct. Many of these cities will recover in one turn.
Build up your worker force ahead of time by building them in cities that have hit size 12 or even 6 if it doesn't have an aqueduct. Many of these cities will recover in one turn.