Development Standards

Chapter 5 Revisions

  1. 505.E Private Roads and Fire Access (Revision Date 5/20/2013)
  2. 505.E-5 (PDF) Private Road or Driveway Turnout Detail (Revision Date 5/20/2013)
  3. 505.E-6 (PDF) Private Driveway Details (Revision Date 5/20/2013)
  4. 505.I (PDF) Sight Distance (Revision Date 9/25/2012)
  5. 506 (PDF) Traffic Impact Mitigation (Revision Date 03/25/2015)
  6. 506 (PDF) Traffic (Revision Date 5/26/2010)
  7. 507 (PDF) Road Construction Plans (Revision Date 01/01/2015)
  8. 509 (PDF) Securities (Revision Date 5/26/2010)
  9. 512 (PDF) Utilities (Revision Date 09/23/2015)
  10. 512.F-1 (PDF) County Maintained Roadway Cut Repair (New – Effective Date 09/23/2015)
  11. 512 (PDF) Utilities (Revision Date 9/25/2012)
  12. 513 (PDF) Bridges and Retaining Walls (Revision Date 5/26/2010)
  13. 515 (PDF) Definitions (Revision Date 9/25/2012)

Additional Chapter 5 Revisions (5/8/2017)

In addition the following sections have been updated (Please contact the Public Works Engineering Services staff at 360.778.6220 for further information):

505 Table 1 – Arterial Roads

505 Table 2 – Residential Roads

505 Table 7 – Local and minor access road design values

505 Table 8 – Arterial and collector road design values

505 Road Types and Geometrics/Roadway alignment – 3) Horizontal curves and associated drawings

508-D Driveway Approaches and associated drawings