Recently came across a new design on Gotsu City's draincover. It shares many elements with the earlier design, (seen here) at the top is "Star Mountain" a post on which you can find here.
Below it is the new double decker bridge across the Gonokawa, and the official flower of the city, tsutsuji (azalea)
The three figures at the bottom are new.Some years ago my town, Sakurae, was incorporated into Gotsu City and the design from Sakurae's draincover is the Enko, known more commonly as Kappa. The two human figures are Kakinomoto Hitomaro and his wife, Yosami no Otome was from what is now Gotsu and there are claims that some of Hitomaros poems are based in Gotsu.