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US-95: CDA signal upgrades

Upgrading signal technology will improve traffic flow and functionality in emergency situations.

Starts spring 2023
3 months of work
Work done at night
Check 511 for impacts
Contact us


Work will be done at night, with flaggers reducing US-95 to one lane in each direction. Crews will generally work at one intersection at time and usually for one week at a time.

More information will be released closer to construction.

Project details

Most signals on US-95 between Ironwood and SH-53 will be upgraded, except for those recently installed.

Upgrades in detection devices will help signals be more responsive. Backup batteries and other power sources in new cabinets will keep signals running even after losing power, and reflective backplates will be added to signals to improve visibility.

Pre-emption devices are being added to the corridor to improve EMS response time.

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US-95 signal upgrades: contact us

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