Yes.
Chicago river (green river Chicago) gets dyed green every year.
The Chicago River is dyed green every year for St. Patrick's Day.
The Chicago River is dyed green and they have a parade.
The Chicago river is dyed green(er) on St. Patrick's Day.
The Chicago River is dyed green on St. Patrick's Day in Chicago. This tradition has been taking place since 1962, and it has become an iconic part of the city's celebrations for the holiday.
Savannah river
Chicago River
yes
It is dyed green in celebration.
Chicago River
No rivers are green except the Chicago River which is only green for one day in St. Patrick's day because it has been dyed
The Chicago River and San Antonio River are dyed green every St. Patrick's Day.