Engineering Standards

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Engineering Development Manual

The Engineering Development Manual (EDM) addresses permitting and engineering requirements for site and right-of-way work related to development within the City of Shoreline. While this manual is geared toward the developer and the design/development engineer, it is intended to provide information to a wide group of users.

The manual sets forth minimum engineering criteria and specifications and supplements the Shoreline Municipal Code. It does not replace the code. These standards do not substitute for engineering design, nor are these standards intended to limit innovative design where equal performance in value, safety, and maintenance can be demonstrated.This manual has four divisions. The appendices contain information which supplements the four divisions. 
Division 1
Administration contains information related to permits. 
Division 2
Right-of-way presents standards and other information related to development within the right-of-way. 
Division 3
Surface Water contains surface water policies, as well as design standards. 
Division 4 Construction and Inspection provides the basics regarding construction
and inspection in the City right-of-way. 

2016 Engineering Development Manual Update

2016 EDM is effective June 13, 2017.  All permits submitted after the effective date must meet the standards of the 2016 EDM.

While all changes and modifications cannot be listed, the table below identifies key areas of modification.

Chapter/ Section


7.9 Illumination

Added street lighting requirements/standards

Chapter 8 – Transportation Impact Analysis

Revised and details moved to appendix

Chapter 10 Access Management

Revisions and re-organization of some information. Key changes include clarification on consolidated access, driveway spacing

Chapter 11 Access Design

Clarifications on driveway placement

Chapter 17 Traffic Control Devices

Added section on standards and requirements for traffic signals

Division 3 – Surface Water

Multiple provisions for compliance with NPDES permit

Revised flow control standard for Boeing Creek Basin

Appendix C – Surface Water Report Guidelines

Updated for consistency

Appendix E- Transportation Impact Analysis

Revised and clarified requirements

Appendix H – Infiltration Test Method

Updated Appendix to be consistent with Department of Ecology methods

Appendix J – Street Lighting Level Criteria

New appendix for street lighting



The EDM is adopted administratively and is intended to be updated annually. The EDM will be updated again later in 2017 to incorporate wastewater standards and other identified changes.

Comments for future revisions can be submitted to Development Review and Construction Manager Noel Hupprich.

2014 Engineering Development Manual

CAD files are available on request.

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