Indio, California: Highway Center Line Inventor

A historical marker credits Dr. June McCarroll with the idea of painting a center line on roads for traffic safety. In 1917 she painted a dangerous section of what later became CA 99. California highways adopted the practice, and it spread from there. Two Michigan men counter-claim to have painted center lines as early as 1911.
Address:
Indio Blvd., Indio, CA
Directions:
Intersection of Indio Blvd. and Fargo St.
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Visitor Tips and News About Highway Center Line Inventor

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Highway Center Line Inventor.

Highway Center Line Inventor

The monument is just off of SR 111 -- there is easy street parking in the area and it is just a quick walk. The placard is next to a large gazebo and the the text faces Route 111. If you are the kind of person who is willing to go out of the way to see a placard and learn a little history, then it's certainly worth the detour!

[Chrissy M., 07/31/2018]

The 2002 marker notes how, in 1917, a truck nearly collided with Dr. June McCarroll's Model T, forcing her into a ditch. She had the idea for a painted center line for lane safety, and returned to paint it herself on the offending stretch of road.

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October 22, 2019

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