Thank you for the explanation. I wasn't sure if it was approved for just a certain section. So there is the expectation that the wall will be completed eventually across the entire boarder?
What does the wall look like? Concrete? Fence? Fence/moat/razor wire/dogs/electricity combo/landmine?
Any idea?
I'd hold off on expectations for the entire border.
The expense of the fence isn't that great ($5-6 billion, IIRC) but there are a whole lot of politics involved in this and some of it involves factions inside the Republican party as well as between the Democrats and the Republicans. Next years' bi-election could have a major impact on further funding or even continuation of existing funding if it is a close election or if (dare I speak it) the House changes hands.
As for the design of the fence, the graphics I have seen start with two parallel anti-vehicle/personnel ditches on opposite sides of two very tall, razor wire-topped, chain link fences. There would be movement sensors buried between the two fences and raked dirt patrol roads. (Similar to the ones the Israeli's use.) But nothing like the 28-foot high solid concrete walls in use in certain parts of the Israeli border wall/fence system. Of course, an unobserved, unpatrolled barrier is no barrier at all, so a portion of the funding would go to substantially increasing the size and capabilities of the border patrol.
If I were to construct it, it would be two walls, similar to the Berlin Wall but taller and a below ground extension of at least twenty feet to prevent tunnelling. Each wall would be identical so if they did get through one they would have another just like the first. They also need motion detectors because somebody will try to blow a hole through it to get in. Guaranteed.