It looks like planning is in process to extend Grand Avenue in Ames to the south, connecting to S16th St. It would cut through Coldwater Golf Links, but it looks like it avoids the existing fareways and greens as best I can tell. Go to page 17 in the link below.
http://www.iowadot.gov/program_management/stip/2017-2020_STIP_final.pdf
http://www.iowadot.gov/program_management/stip/2017-2020_STIP_final.pdf