CSAH 18 drainage plans:

02-618-08
02-618-15 (turned back to city, no longer county road)
02-618-20 (overlaps with 002-618-034)
02-618-24/02-614-49
02-618-25
02-618-30
02-618-31/02-611-33
002-618-034 (four new structures, two of them tie into existing system. Not updated in asset map)