The road on top of the berm is the truck road. Come in, the crane takes the load off, the truck leaves. A continous line all pointed the same way.
And yup, would need a batching plant to pour the footings. I would say rebar pounded down some 20 to 30 feet into the ground. Why that far? Because them dirt bags like to tunnel and motion sensors can be hooked on that rebar.
I dont think it would be that expensive. Dam good CCC projects were done real quick back in the 30s. Even the Hoover dam was one of the greatest public works projects and that was done, I believe, ahead of schedule and under budget if I remember right.
Them Mexicans are better at tunneling than the “Palestinian” sand rats.
The motion sensors are a good idea.
Buy’em in bulk under bid and use plenty of them.
One reason the CCC was able to do what it did was because they didn’t have an EPA or tree huggers to deal with.
They start to build the wall and there would be 20 years of lawsuits by every envirowhacko and border jumper lover in the country.
Congress would have to pass legislation to skirt the EPA and lawsuits.
Maybe a State of Emergency would have to be declared to get things moving.