Famously, SoCal likes putting the article "the" in front of highway numbers. "The 5" for Interstate 5, "the 101" for US 101, etc. When I moved down here 5 years ago, I was talking with a native of over 50 years, and mentioned that, for example, Reno was the crossroads of I-80 and US-395 -- though for "long" numbers like 395, we would often just say "395", and "short" numbers like 80 would usually be called "I-80".
She genuinely didn't notice until that point that there were different types of highways. "So, like, you memorize if the highway is an I or a US or an SR?" and ... yeah? We did? Though I will admit "the 134" is a lot more homogeneous and easier to apply.
US 395 is interesting that it goes north/south, all the way from the Canadian border, through Washington, Oregon, Nevada and terminates in Hesperia, California, though Historic 395 continues on sporadically to San Diego. The highway was a prominent part of both my and
@nprofile1q... 's life, and he once proposed a theory which lives rent-free in my head: It's actually two highways. US-395 runs from the Canadian border to Bishop, California, and The 395 continues from Bishop to Hesperia.