Superior, Arizona, near a tunnel used to be 60 years in 2015 to replace the LED lighting, the tunnel will also become the first Arizona tunnel using LED lighting.
Tunnel will replace the LED lighting system can be adjusted automatically according to the ambient lighting and natural conditions. In addition, maintenance and replacement also can save a lot of costs and provide greater convenience, are required to close the tunnel when the tunnel during the lighting to replace the previous, making road traffic has been greatly affected.
The lighting replacement project funds totaling approximately $ 3.8 million, of which the Federal Highway Administration for the project $ 1 million grant to the Arizona Department of Transportation, and the remaining $ 2.8 million will be raised ADOT company.
