This is the Overpass Turbo query I’m using to look for ways in the U.S. I’m still working on adapting it for the Overpass API query, but I’m running into some issues with the regular expression:

[out:json][timeout:120];
{{geocodeArea:"USA"}}->.searchArea;
rel(pivot.searchArea);
out geom;
(
  way[maxheight~".*[’‘´ˋ`ʼꞌ′`ʿ΄”“″¨ˮ‶΅].*"](area.searchArea);
  way[maxlength~".*[’‘´ˋ`ʼꞌ′`ʿ΄”“″¨ˮ‶΅].*"](area.searchArea);
  way[maxwidth~".*[’‘´ˋ`ʼꞌ′`ʿ΄”“″¨ˮ‶΅].*"](area.searchArea);
);
out geom;