Flag created by CincyFlags for the neighborhood. 
Its symbolism, according to CincyFlags in [1]:
"An iconic representation of the Anderson Ferry that has been in operation since 1817.
The winding shape of this river illustration includes a deep blue stripe as a nod to the wine-making history of the region, as well as a lighter blue for the optimism of the residents.
Blue for the river, Riverside’s history and the optimism of its residents.

White for the enduring methods of transportation."
Own work using: https://www.cincyflags.com/riverside-1
CincyFlags