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DENVER – Denver International Airport is launching a $25 million project to replace approximately 400 concrete slabs along a stretch of runway as well as install a new LED lighting system on another.

Crews closed Runway 7-25 on the west side of the airport at 4 .m. Tuesday. It's expected to reopen on Aug. 14. In the meantime, workers will replace concrete slabs showing signs of deterioration.

Once that project is finished, crews will start upgrading the lighting system on Runway 8-26 on the east side of the airfield. DIA is replacing the quartz centerline and touchdown zone lights with new, energy-efficient LED lighting. It's the third runway to get the new lighting system. The runway will close from Aug. 15 to Sept. 30. The work is expected to cost $14.7 million.

This project is part of a larger effort to upgrade lights throughout the airport – including the 5,400 lights in the airport's east and west parking garages.

(KUSA-TV © 2014 Multimedia Holdings Corporation)

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