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Chapter 3
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Right-of-Way Improvement Requirements
3.1.2 New Streets
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Street Right-of-Way and Roadway

New streets created through the platting process or otherwise dedicated shall meet the improvement requirements specified below. The creation of new streets requires dedication of property to the City of Seattle for street purposes.

Width Requirements
  Arterials
  Non Arterials
Street Improvement Requirements
  Arterials
  Non Arterials
 
Connecting Streets

Vehicular access from the project site to the rest of the street system shall be provided. When the connecting streets between the project site and the nearest hard-surfaced street do not meet the Fire Code requirements for fire access, the project owner shall upgrade the streets as follows:

  • For one or two dwelling units or single family homes, a crushed rock roadway at least 16 feet wide shall be provided; all other types of development shall provide a paved roadway at least 20 feet wide, unless there is an existing hard-surfaced roadway at least 18 feet wide.
  • New roadway improvements shall be graded to the future street elevations (as shown on the Building Grade Sheet) with a thickened edge provided for drainage. The connecting roadway shall be paved at least 100 feet beyond the project boundary. If more than 100 feet of connecting roadway improvement is required, the remainder may be crushed rock if approved by the Fire Department.

Crushed rock is not allowed when the roadway grade exceeds 10%.

 
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Detailed Table of Contents
Chapter 3
Right-of-Way Improvement Requirements
3.1 Overview of Requirements from the Land Use Code (Ch. 23.53 & 23.22)
3.2 Requirements for Streets, Alleys and Easements
3.3 Contact Information
   
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