Ramp is mislabeled. It should read I-238, not I-283.
Fixed
Thanks.
Your lucky it isn’t ‘U238’! :lol:
LOL
I hate the whole I-238 travesty that’s been foisted on the Bay Area. It doesn’t follow the Interstate numbering scheme at all.
But don’t take my word for it:
http://www.gbcnet.com/roads/I-238/
Because it used to be State Hwy 238. And when they upgraded it to freeway standards, the state decided to keep the same number (because it had been SR-238 for a long time). They got approval from the FHWA and so there you go.
And no, I didn’t have to go to a website to look that up. That’s filed away in the brain under “interesting but useless facts” 
Yep. But usually when a SR or US Hwy gets converted to an Interstate, it gets a new number and the SR or US Hwy designation gets dropped.
Oddly, I-880, which I-238 connects to, used to be SR-17 and I-880 was in Sacramento, 70 miles away. When SR-17 got upgraded, they renamed I-880 to I-80, I-880 to BUS I-80, and part of SR-17 to I-880, the rest of SR-17 was renumbered to I-580 by extending I-580 north to Richmond.
The world didn’t end. 
I-238 was pure ineptitude on Caltrans and FHWA’s part, IMHO.
Also, US 395 in Reno just got re-signed AGAIN to I-580 this summer. It was originally US-395, then got re-signed to I-580 in the 70s, re-signed BACK to US-395 in the 80’s and re-signed once again to I-580 in 2012 after upgrades were completed.
They’re building I-69 from Brownsville to Houston, Texas.
Can you tell me what’s wrong with that number?
The same reason why there exists an I-99 in Pennsylvania. Politics.
I-99 was requested to be labeled I-99 by a guy who…sold a huge chunk of land to the state for building purposes, or helped spearhead the design and building of that interstate (I can’t remember off the top of my head).