Transportation Data

Washington County's road system consists of 1,286 total centerline miles. These roads include (in centerline miles):

1,068 paved roads

218 gravel roads

657 urban roads (128 Arterials, 74 Collectors, 85 Neighborhood Routes, 370 Local)

629 rural roads (72 Arterials, 188 Collectors, 369 Local) 

In lane miles, the county's system consists of 2,995 lane miles, 456 of which are inside incorporated cities.


As of 2014 the average Pavement Condition Index (PCI) of Washington County's paved roads was 77. Average PCI by Functional Class:

  • 77 Urban Arterial
  • 73 Urban Collector
  • 72 Rural Arterial
  • 75 Rural Collector
  • 69 Rural Local
  • 80 Neighborhood Route (URMD)
  • 82 Urban Local (URMD)

PCI is a numerical rating between 0 and 100 (newly paved road). Policy 21.4 of the Transportation Plan sets PCI targets by Functional Class.


The county's Operations and Maintenance division maintains and repairs road surfaces and:

  • 186 bridges and drainage ways (44% of which are functionally obsolete)
  • 3,009 culverts greater than six inches (550 of which are greater than 36 inches)
  • 825 miles of drainage ditches
  • 34 miles of guard rail
  • tends roadside vegetation
  • oversees private construction activities that occur within the public right-of-way
  • provides 24-hour snow and ice removal during winter storms
  • provides 24-hour emergency response year around  

In 2013-2014 maintenance activities performed on the county road system included:

  • 458 lane miles of road striping
  • 71 miles of road paving and sealing
  • 201 miles of gravel road grading
  • 512 shoulder miles of roadside brush cutting
  • 6 shoulder miles of ditch maintenance
  • 1,445 requests for service, top five requests:
    • 315 vegetation removal
    • 129 pothole filing
    • 124 trash/debris removal
    • 120 gravel road grading
    • 75 dead animal pickup

In 2013-2014, 1,914 Right-of-Way permits were issued:

  • 873 Access permits
  • 848 Utility permits
  • 125 General permits
  • 68 Dust control permits

12,942 Transportation permits (Motor Carrier Trip Permits) were issued for oversize loads on Washington County roads.


In 2013-2014 the Service District for Lighting:

  • 11,254 street lights managed
  • 43,152 street light customers billed
  • 1,127 street light assessment areas
  • 881 street light outages repaired
  • 170 trees trimmed

For more information about Washington County's roads, see:

See Washington County Roads for weekly road news, current and scheduled road work, road closures and traffic advisories.