They will probably use a 2" slump concrete and it should be fine. They may even gunite it. I have paved many a mile of concrete coulee at 1.5 to 1 side slope which is steeper than this.
Thanks for the photos Frenchie, I figured they were placing Burke joints from the cam.
It looks like they will use those metal forms to scree the mud slide. The mounds on top of the lower picture is the mud slide they will lay down. Feels like course sand and cement mixture. And the top photo has some of Boomers advertisement.
Frenchie, the mud bed will be placed on top of the sand mixture you saw. The mud bed will be a low strength concrete that they will place between the burke joints (metal forms). When they get rain on that sand it will slide to the bottom and they will have a mess. The mud bed is a a misnomer, it is actually concrete to prevent mud from getting on the rebar, to stabilize the slope and to make it easier for the rod busters, form erectors and concrete finishers to work without getting mud on the rebar. You will see.
They are at an even more vulnerable time now because if we get a heavy rain all that sand is at the bottom of the hill and maybe on the field. The really really really need to bust butt to get that mud bed done before the next rain.
I will check it tomorrow afternoon. They may have quite a bit down. If it don't rain they may have the whole thing ready by this week end. I was watching them. It same to the man that they know what they are doing. I was there during lunch break....30 minutes and they were back at it. Another thing, if they expect heavy rain, would they stop before they commit to something that would be ruined, and wait for the right time to continue?
So mud bed = protective layer of cement that will give stabilization and allow the job to move forward without fear of rain washing all the progress away.
Hard to see with the glare but looks like a cement truck boom in the cam this morning
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