With such an early warm-up this March, Kathy and I got out there to try to finish the job. I think we are about a third of the way into the finish. Here's where we left off today.
At the top of the picture you see where I began to clear obstructions earlier this month. That area is labeled "Kathy's Work Area" because Kathy knows something about fitting rocks together in a wall or on a bank so that they don't move. She is establishing a layer of rocks on the floor of the swale and a firm slope of rocks on each side.
In the middle of the picture is my work area for the past week, where I've been using a crowbar to reduce an enormous hump running lengthwise and forcing storm water to eat away at the sides. On the ground on both sides of the swale you can see a line of rocks and rubble I tossed out of the swale. Some of this will go back in to firm up the floor and reinforce the sides.
Here's a close-up of Kathy's work where the swale empties into the lake. I couldn't begin to do this well.
The view below shows the relationship between our shoreline and some of the neighbors.
Now we're looking uphill from the previous vantage point. I'm up there contemplating what's necessary to help the water get to the area I've cleared out.
It's about time to quit for lunch in this picture, but I've just insisted that I want to toss out the last of the broken concrete rubble that impedes water flow on the right side. That's a foam pad in my hand for kneeling.
This is Kathy's last picture before going in to warm up lunch. I'm tossing bricks and concrete chunks onto the side. When I stopped there were two improved channels on either side leading to the single channel from my work area on down to the lake. By "improved" I mean pretty clear of needless obstructions.
My stopping point was within a few feet of the area I call "The Great Falls." At that point, there's a sudden drop of more than a foot in the center, while on both sides there's a gradual but unwelcome set of new channels. About six feet above The Great Falls is the bizarre arrangement of old patio bricks that form the main collection of The Lago Segretto Rubble Museum.
I plan to decommission the museum next month and "deacquire" the collection of broken concrete, rocks, and bricks. But first I have to toss them all to the side and clarify what the real runoff channel should be. The engineering problem is that the original poured concrete swale that lies outside the lower right corner of the picture has been undermined for years and is in various stages of collapse. I can't do anything about the undermining action. My goal is to eliminate an eyesore, shore up the dirt sides, and halt the gradual deepening and widening of the channel from the force of water striking dirt. Where water is going to flow, I want it to strike rock all the way to the lake.
Steve Brandt and Tim Yanko are back this week correcting a French Drain along a wall near our garage.
Steve is applying a sealer to the base of the wall so a wave of storm water can't overrun the drain in the trench you see there. The previous construction of the drain was faulty. There was no way for water to get to the drain. This correction and one other will help prevent the erosion of Kathy's shade garden on the other side of the wall on a steep hillside. The other correction will be to cut a channel across the concrete driveway at the low spot and install a grated drain to catch and redirect the occasional waves of water that surge across the road from higher properties and straight down our driveway toward that wall where Steve is working.
On the other side of our parking area, Steve and Tim have dug a trench for a good solid base to support the repositioned free-standing wall there.