The Omnibus restricts new barriers to "operationally proven designs, already in use". The gist is that they want bollards (which is what the Border Patrol wants), or bollards on top of concrete levee, where flooding is an issue. Thirty foot bollards are OK, just not thirty foot solid concrete walls.
The Omnibus does specifically fund ($1.6 billion) about 100 miles of new barrier, including a major effort (33 new miles) in the Rio Grande Valley, to close major gaps (miles wide gaps) that still exist after Bush's barrier building (2006-9). In San Diego, it will be two complete new Trump-Style barriers, both stretching all the way (14 miles) from the ocean to the Eastern edge of the San Diego Metro Area (Otay Mesa) - with patrol roads, lights, cameras, and sensors.
Bush started out with 100 miles the first year, 200 the second, and 300 the third; but a lot of it was easy miles of vehicle barrier in the flat desert. Trump's program is to put very strong barrier (typically thirty foot bollards set in six feet of concrete) with roads, lights and sensors, where traffic is heaviest - taking on the hard but most important urban areas first.
Congress wants to fund 100 miles per year (which frankly is pretty good), but Trump wants to knock it out mostly in his first term - about 1,000 miles of strong barrier.
The new thirty foot bollards in Calexico are taller than the surrounding houses or trees:
