Roads

Welcome to the Napa County Roads Division. We are committed to maintaining and preserving the Napa County road system so that it is safe, reliable, and accessible for all users.

Responsibilities

The Roads division is responsible for maintaining approximately 450 miles of public roads, 79 bridges and 50 major drainage structures within the unincorporated area of the County. The division is active in other road-related safety efforts such as vegetation management and maintenance of structures, drainage facilities, guardrails, traffic signs, signals, and pavement markings.

  1. Road Closures Map
  2. Road Construction Plan
Napa County Map

Related Documents

Traffic Engineering

  1. 2017-18 Five Year Review and Fee Adjustment - Traffic Mitigation for Airport Area (PDF)
  2. Requirements for Preparation of Traffic Impact Studies (PDF)
  3. Left Turn Lane Warrant Graph 2011 (PDF)
  1. Traffic Volume Summary (PDF)
  2. Evaluation of Cumulative Impacts (PDF)
  3. 2017 Napa County Road and Street Standards (PDF)

Permits / Applications

  1. Approved Wildflowers (PDF)
  2. Napa CARE Info Packet (PDF)
  3. Traffic Mitigation Fee Brochure (PDF)
  4. Encroachment Permit Application (PDF)
  5. Special Event Permit Application (PDF)
  1. Complaint Process (PDF)
  2. Blackout Dates for 2019 (PDF)
  3. Special Event Permit Application EMS Resource Guidelines (PDF)
  4. 2017 Special Events (PDF)