The Ada County Highway District 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, (8am-4:30pm, Monday-Friday), please call the Ada County Sheriff's Dispatch's non-emergency number at  208-377-6790.
If this is an emergency, please call 911.

Board of Commissioners: 208-387-6110

Office of the Director: 208-387-6110

Office of the General Counsel: 208-387-6113

Office of the Chief of Staff: 208-387-6125

• Accounting: 208-387-6120
• Commuteride: 208-387-6160
• Communications: 208-387-6107
• Contract Administration: 208-387-6316
• Human Resources: 208-387-6102
• Information Technology: 208-387-6125
  • Records Custodian - 208-387-6221
• Surplus Property: 208-387-6277

Development and Technical Services Division: 208-387-6170

• Development Services: 208-387-6170
  • Impact Fees & Ordinances: 208-387-6170
• Environmental Department: 208-387-6250
• Design: 208-387-6250
  • Design Survey: 208-387-6250
• Traffic Division: 208-387-6140

Maintenance Division: 208-387-6320

• Adams Section:
  • Oversees eastern Ada County: 208-387-6325
• Cloverdale Section:
  • Oversees western Ada County: 208-387-6350

Planning, Programs & Capital Project Management: 208-387-6119

• Capital Projects: 208-387-6226
  • Right of Way: 208-387-6224
• Planning & Programs: 208-387-6119
  • Community Programs: 208-387-6119
  • Construction: 208-387-6250
  • Utilities: 208-387-6259
  • Integrated Five-Year Work Plan: 208-387-6119
  • Pavement Management: 208-387-6119
  • Bicycle Resources: 208-387-6119

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