CDOT Completes Lighting Improvements on US 550 Red Mountain Pass

Aug. 23, 2018 -
Snow Shed Tunnel

OURAY COUNTY—Crews have completed lighting improvements to a snow shed tunnel on US Highway 550 between Silverton and Ouray, approximately eight miles north of the Red Mountain Pass summit. The $675,000 project started in early May 2018, and was completed on schedule.

Work Completed

Crews completed the following:

  • removed the existing lighting and electrical circuit;
  • replaced 198 interior lights;
  • replaced all the associated electrical wiring with new electrical system;
  • installed 11 contactors and a new program logic controller (PLC).

The PLC operates by a photocell and will allow different light settings for daytime and nighttime. The old, out-of-date lighting system was updated with new LED, energy-efficient lighting. The updated lighting will use less power, while allowing more light, for better travel visibility at all times while driving through the tunnel.

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