Mo. Rev. Stat. § 227.476: Bill Grigsby Memorial Highway designated for portion of State Highway 9 in Platte County.

The portion of State Highway 9 from Nodaway Street to Park College Entrance Drive in Platte County shall be designated as "Bill Grigsby Memorial Highway". The department of transportation shall erect and maintain appropriate signs designating such highway, with the costs to be paid by private donations.