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ADOT will install new highway lighting to preserve dark skies around Flagstaff

Amber LEDs in Flagstaff
Arizona Department of Transportation
/
Handout
Amber LEDs in Flagstaff

The Arizona Department of Transportation announced it will be replacing street lights on interstates near Flagstaff with amber LEDs to help reduce light pollution.

Starting in May, ADOT will replace 370 light fixtures along Interstate 17 and Interstate 40 in Flagstaff, as well as stretches of Route 66.

Flagstaff is recognized as an international dark sky city. ADOT says tests show the amber LED lights reduce upward brightness.

“For decades, we've been using fixtures and shields when needed in Flagstaff to really limit the upward projection of highway lighting,” said Doug Nintzel with ADOT. “We see this as another great step in the right direction.”

Nintzel says this project was in collaboration with the city and the Flagstaff Dark Skies Coalition.

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Connor Greenwall is an intern at KJZZ.