Once the weather warms up around here road construction projects start popping up like mushrooms.
This year the water company is replacing about three miles of water main along North Ballas, a major road that runs just outside of our condo development. In preparation, strange painted marks appeared overnight on the sidewalks and along the street.
I was curious what the squiggles meant, and turned to Google for the answer. It didn't take me long to learn that the colors and shapes denote the type and approximate location of an underground utility.
There's a standard code for colors. Red is the color for electric. Yellow marks gas, oil, steam, petroleum, or gaseous materials. Orange indicates some sort of communications cables. Blue is for water lines. Purple symbolizes reclaimed water, irrigation and slurry lines. Green is for sewers and drains.
Straight lines show where pipes and cables are. The diamond shape is for a fiber conduit.A zig-zag shows something goes in both directions. Triangles indicate conduits. Colored letters indicate the owner of a given utility element, or the material an element is made out of. White writing is some type of note to the construction workers.
Now when I walk around the neighborhood I'm much more aware of what's underground around me.
Five years ago today: The City By The Bay
Thank you, now I know too!ReplyDelete
I'll never remember any of that except maybe for the colors!ReplyDelete
now we know so much more... good for you for having googled it all!!ReplyDelete
And they take forever to go away. Also, the marking company is only liable for 10 days for accurate locations. That's why you'll see things remarked if construction gets delayed.ReplyDelete
The first part I knew...the second was news to me.Delete
Why is it they dig roads and work on pipes, cables and so on in busy built-up areas? Why don't they do it far away like in deserts or jungles or on the oceans? Why disturb people living in towns and cities?ReplyDelete
Does the blue H mean a helicopter will land there?
Maybe because desert, ocan, or jungle roads don't get a lot of use? :-)Delete
Thank you for your research. I’ve seen marks and often wondered what they stand for.ReplyDelete