There are 14 unique ditch names beginning with J:

J.H. Sams Ditch	Jackson Ditch	Jenkins Ditch	Jerome Ditch	Jerome Village Glacier Park Neighborhood Ditch - S	Jewell Ditch	Joel Hill Ditch
Johnson Ditch	Jolliff Ditch	Jolliff Road Ditch	Jones Ditch	Jones Ditch Repair	Judy Ditch	Justice Ditch