Fifty years! Yes, that’s right. At the current rate it will take 50 years to design and install all the grassed waterways needed in Iowa. And this timetable is being generous. The 50 years doesn’t even account for maintenance, repair, and replacement of these grassed waterways after their normal 10-15 year lifespan.This is not acceptable, especially when you consider all conservation practices like ponds, wetlands, water & sediment control basins, terraces, no-till, and cover crops are on this same timetable. Please note, this is not a …