[ToadHill]

I don't know how overgrown the ditches are but I've had great successkeeping water running in ditches. Simple trick is to ride the tractor with 1 front and 1 rear wheel in the ditch once in spring and again in fall when the soil is soft. This keeps the ditch clear and about 6" deep along the sides of my deive and at the edges of my fields.
When I first got the property water ran across the fields all spring. I made ditches with a 1 bottom plow along the edges and since I have kept them clean using the weight of the tractor, it has eliminated my problem.