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The Arizona Department of Transportation recently started upgrading the lighting system inside the Interstate 10 Deck Park Tunnel north of downtown Phoenix – a project that should save both energy and money.
[Photo courtesy of the Arizona Department of Transportation.]
The Deck Park Tunnel – which originally opened in August 1990 – currently uses an “old style” high-pressure sodium lighting system. The Arizona DOT is now replacing that old lighting system with 3,200 new light-emitting diode or LED fixtures; a $1.4 million project that should take several months to complete. The agency said in a statement that the new LED fixtures – expected to last well over twice as long as their sodium predecessors – should result in energy savings worth more than $175,000 per year; savings that, over time, will help pay for the cost of installing the new LED system.
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