Dams , 12/29/2018, Primer and Update

The red lines are general property boundaries, tan/yellow lines represent earthworks dams and swales, the blue areas are potential water stopped and held by the Earthworks according to general topography. These are the dams and ponds I’ll be referring to here. The general topography is going downhill from lower right to upper left, and the dams from right to left are upper dam,

middle dam,

and contour pond.  The pond just above the contour pond is really just a hole in the ground that doesn’t hold water, and i call it somewhat optimistically the ridge point pond. The very top pond is a potential gully dam , that may never actually be completed since it overlaps the property line and would require a joint cooperation  .


Another very nice rain, and fortunately the 2″ prediction didn’t turn into 8″, although at this point it hardly matters, the cold keeps the ground moisture from evaporating, and whatever falls at this point is just adding to the overall totals.

The middle  dam has been raised now, and the connecting swale nicely tied in. This will allow any future water that threatens this dam to be automatically diverted over to the contour pond.  This pond,  which  mostly has existed as a dry hole , finally started to fill with excess water from the main gully. My storages are really not totally keeping up with all the water falling, the dry days aren’t dry long enough to do any serious work with the backhoe, and the wet days are starting to defy my attempts at control, but the success of the connecting swale here means the next step is to focus in on the swale that extends beyond the contour pond. That is the next big opportunity in ground water storage and a safety valve to keep the contour pond from overflowing.

One of the lessons I have learned on a very experiential level is the old axiom  about how the desert  is a flood waiting to happen. When the ground is dry, the sun is hot,  and machinery can work easily, it is sometimes difficult to imagine the same area overflowing with water. Thirsty plants in the summertime do not automatically bring floods and chaos to mind.

But that is exactly the situation I find myself in. It is true that I have held back a great deal of erosion. When thinking about the large volumes of water that used to scour out the channel beside the drive there is a great feeling of accomplishment, but also a knowledge of more things that need doing.

Thinking about increased fertility in the gardens, and watching new spaces for gardens open  up beside the ponds fills my head with plans for the next growing season. But right now I need to look for places to put all this water that seems to be falling without end., My situation is not one of desperation since the reality of the extra water storage has made everything better overall, but now I find myself somewhat greedy.

Watching a two inch pipe steadily running water instead of flooding erosion is a nice step,  but now I find a new drive to harness even that  two inch flow of water.

PA Yeoman had lots of ideas about water, but probably the central theme was always “no runoff.”  Watching that 2 ” pipe I’m starting to understand. It’s not that I want to hoard all the water in the world, obviously that could never happen anyway. But when that 2 inch pipe leaves the fishpond, it has nutrients that could do wonders for a garden, and i find myself thinking about the next project.  Maybe this year I’ll finally get into setting up a garden down by the creek and take that water through a taro patch before I let it go.

Tying in new swales is also a way to harness that runoff, and it points to the idea that no matter how much you plan, a design is always going to evolve. The main idea is to make sure your design is not so hard and fast it gets overwhelmed with unexpected productivity.

I had thought about some sort of a final  reed bed  to do a filter /harvest  of nutrients before the water finally went to the creek. Of course it seemed far in the future at that time but here I am today watching water escape, anticipating more fun.

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