Metric signs in Arizona

I-19 between Tucson and Nogales

Note: The Arizona Department of Transportation has said that these thirty- to forty-year-old signs need to be replaced, but a decision has not yet been made as to whether the replacements will show metric measurements.

Metric in use sign on I-19 southbound, just north of W Ajo Way, in Tucson, AZ. Photo courtesy of Chris Kobasiar, August 2012.

Metric distance sign in Tucson, AZ. Photo courtesy of Don Hillger, September 2007.

Metric distance signs on I-19 between Tucson and Nogales, AZ. I-19 from Pima County/Santa Cruz County Line to Jct. I-10 (kilometre 48 to 100) is the only route in Arizona to be signed in kilometres instead of mileposts. Top photo courtesy of David Steinberg. The lower two photos courtesy of Harry Wyeth and were included in the September/October 2003 issue of Metric Today.

Metric distance signs on I-19 between Tucson and Nogales, AZ. I-19 from Pima County/Santa Cruz County Line to Jct. I-10 (kilometre 48 to 100) is the only route in Arizona to be signed in kilometres instead of mileposts. Top photo courtesy of David Steinberg. The lower two photos courtesy of Harry Wyeth and were included in the September/October 2003 issue of Metric Today.

Last updated: 2015-11-17

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