The magistrate's office decided to use a part of the license tax the office received from Sahaisho for dredging to pacify the complaints voiced by the citizens; accordingly, the expense of dredging was raised to 4900 ryo in 1773 and all the expenses needed for dredging was paid with this money.
奉行所は市民の不平を慰撫するべく差配所冥加金の一部を川浚えに使用することとし、1773年（安永2年）に川浚費は4900両に引き上げられ、これで一切の川浚え費を支弁した。