Something that puzzled me about California for a long time was the state highway sign. I didn’t even know what to call the triangular, somewhat rounded but pointy on top shape, let alone what it was supposed to represent.
My wife and I have lived in a number of states and driven in quite a few more, and I’d noticed that places often indicate something about themselves in the design of the signs identifying their state highways. The signs in Utah have the silhouette of a beehive. Pennsylvania has a keystone. Washington State has a profile of the first President. Wyoming has the “Bucking Horse and Rider” (a registered trademark). New Mexico has the Zia sun from the state flag. Colorado has a symbol from their flag, too. State outlines are also popular; Missouri, Ohio, Florida and Texas are a few (although the Texas outline shows up on “farm-to-market” and “ranch-to-market” roads instead of the state highways). I guess if Colorado or Wyoming used the shapes of their states on the highway signs no one would be able to tell.
On my first visit to California, as soon as I drove away from the airport I noticed the pointy shape of the green state highway symbol. I wondered about it for a bit and I forgot about it when I left. It would be noticed (and forgotten) again on other visits. Then we moved here and I decided I needed to find out what the shape of the sign meant.
This was before a web search was the way to learn things, so I started with my coworkers. Most of them were born in California, but no one seemed to know. I heard guesses from “the top of an acorn” to “a bishop’s hat”. None of it sounded plausible to me. I asked other friends and acquaintances with no more success. So I decided to call the people who I thought would be most likely to know – the owners of the signs.
My call to the first number for CalTrans I could find in a telephone book went something like this:
Me: I’m calling about the shape of the state highway sign.
CalTrans: Is there a specific sign you’re calling about? Do you have a route number and mile marker?
Me: No, I’m asking in general. What does the shape mean?
CalTrans: It means you’re on a state highway.
Me, after a pause: But what does that shape represent? That roughly triangular green shape that’s pointed on the top? What is it supposed to be?
CalTrans, after a pause: I don’t know.
I guess at that point I should have tried to talk to someone else at a different phone number but I didn’t. I got distracted and forgot about it again.
Much later, I was at the website 50states.com (researching something very important, no doubt) and I found the answer. Unfortunately, the site has changed so I can’t link to the exact spot.
The answer was the original sign shape had the bottom round “corners” as right angles and was intended to be mounted on a post instead of a freeway overhead. This makes the sign and post look like a shovel, with the mystery shape representing the blade. This commemorates the ’49ers coming to the Gold Rush with their shovels. I’ve also read a legend that shovels were used to mark the miners’ trails, although I can’t imagine dragging a shovel across the continent to leave it along a trail where someone else without a shovel would probably take it.
It’s easy enough today to do a web search for “California state highway sign shape” and get much more of the story. KCET has a good article here.