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Chapter 4
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Design Criteria
4.27 Access Easements

Vehicle access easements serving one or two dwelling units shall be surfaced with crushed rock at least 6 inches in depth.

Vehicle access easements serving more than two dwelling units shall be surfaced with 3 inches of asphalt over 6 inches of crushed rock.

A 2 foot wide shoulder shall be provided on each side for clearance.  Easements shall be graded to a crowned cross section with thickened edge or a “v” cross section to provide for collection of storm water.  Control of storm water runoff from the easement shall meet the same drainage control requirements as the building lot.  The top 12 inches of subgrade shall be prepared as specified in the Seattle Standard Specification 2.06.

Turnarounds must meet the requirements shown in Figure 4-25 or 4-26.

continue to section 4.28 »     
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Detailed Table of Contents
Chapter 4
Design Criteria
4.1 Introduction
4.2 Street Classifications and Street Types
4.3 Design Criteria General Notes
4.4 Grading
4.5 Design Cross Section
4.6 Roadway Width
4.7

Roadway Pavement

4.8 Intersections
4.9 Driveways
4.10 Curbs
4.11 Sidewalks
4.12 Crosswalks
4.13 Bicycle Facilities
4.14 Street Trees and Landscape Architectural Standards
4.15 Introduction to Utilities Design Criteria
4.16 Street Lighting
4.17 Street Drainage, Storm Drains and Sewers
4.18 Water Mains
4.19 Fire Protection
4.20 Seattle City Light
4.21 Clearances
4.22 Structures in the Right-of-Way
4.23 Culdesacs and Turnarounds
4.24 Traffic Operations
4.25 Transit Zones
4.26 Street Furniture, Public Art and Unique Objects in the Public Right-of-Way
4.27 Access Easements
4.28 Contact Information
   
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