Ada County Highway District

Ada County Highway District Hours of Operation

The Ada County Highway District main office is open from 8 a.m. to 4:30 p.m., Monday through Friday, except for designated holidays.

For 2021, the District's holidays are:

  • Friday, January 1 -- New Year’s Day
  • Monday, February 15 -- President's Day
  • Monday, May 31 -- Memorial Day
  • Monday, July 5 -- Independence Day (Observed)
  • Monday, September 6 -- Labor Day
  • Thursday, November 11 -- Veterans Day
  • Thursday, November 25 -- Thanksgiving Day
  • Friday, November 26 -- Day after Thanksgiving
  • Friday, December 24 -- Christmas Eve
  • Monday, December 27 -- Christmas Day (Observed)

ACHD has specialists on-call around the clock to deal with signal malfunctions, missing or damaged signs and any other issue involving the local road network. If you need assistance or to report a problem at a time outside of normal business hours, please call the Ada County Sheriff's Dispatch's non-emergency number at 208-377-6790.

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