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A vibrant Seattle through transportation excellence Grace Crunican, Director

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Street Use Street Improvement Permit

SDOT to Temporarily Extend 6 week Street Improvement Plan Review Turnaround to 8 weeks

Due to an increased number of Street Improvement permit applications and a shortage of resources, formal circulation and design guidance review cycles which are currently scheduled for completion after July 15, 2008, may experience delays of up to 2 weeks.

Effective immediately, all new Street Improvement permit applications will be scheduled for an 8 week turnaround. As soon as we are able to do so, we will return to our 6 week turnaround cycle.

Whenever development occurs under the Department of Planning and Development (DPD) land use code there may be requirements for improvements in the right-of-way. The Seattle Department of Transportation (SDOT) has design criteria that these improvements must meet. The Street Use Street Improvement Permits (SIP) section is the point of contact to assist you with these improvements. SIP provides project management and facilitates approval for private projects from single family residence to large scale and city interdepartmental projects for SDOT.

The SIP section maintains an Applicant Service Center at DPD. Prior to the start of any project it is strongly recommended to discuss your project with one of the plan analysts. The analyst discusses the scope of the project and can provide advice about project requirements.

SDOT and DPD have responded to the Mayor’s Executive Order to align the permitting process for private development at DPD and right-of-way development at SDOT. After a multi-year process with input from community stakeholders and City staff, we will soon be aligning our individual permitting processes at key points. Read the details.

STREET IMPROVEMENT PERMIT (SIP) RESOURCES

Right-of-Way Improvements Manual

The Seattle Right-of-Way Improvements Manual is intended to help property owners, developers, architects and engineers plan for and design street and alley improvements associated with development projects.


SIP Client Assistance Memos (CAMs)

Client Assistance Memos provide user-friendly guidance on matters pertaining to Street Improvement Permits.


SIP Information Packets

There are three SIP information packets; each focuses on a different part of the development and permit process. Brief explanations of each packet are below.

Applicant/Developer Packet : The Applicant/Developer Packet is designed to help you understand the requirements that each applicant/developer must meet in the City of Seattle Department of Transportation Street Improvement permitting process.

View or download the Applicant/Developer Packet | PDF

The packet contains the following information:

  • Introduction to the Seattle Department of Transportation Street Improvement Permit process,
    • including a process overview of the six phases of the Street Improvement Permit, mapping to DPD’S MUP/building permit process, process calendar depicting applicant versus city activities, a worksheet and instructions for using the project calendar, and a project schedule worksheet
  • Forms and other aids,
    • including an explanation of how to apply for a Street Improvement permit ( Client Assistance Memo 2200 ), plan requirements ( Client Assistance Memo 2201 ), Application for Design Review, Application for Street Improvement Permit, and Notice of Design Impacts for Construction in Public Rights of Way
  • City Services, including services provided and general ranges for costs
  • Street Improvement Survey Guidelines
  • Bond Transmittal Sample.

Engineer/Designer Packet: The Engineer/Designer Packet explains the steps required of engineers/designers in the City of Seattle Department of Transportation Street Improvement permitting process.

View or download the Engineer/Designer Packet | PDF

The packet contains the following information:

  • City Services, including services provided and general ranges for costs
  • Information/Design Requirements,
  • Street Improvement Permit Survey Guidelines
  • Review and Corrections Process with a Sample Transmittal Letter

Contractor Packet : The Contractor Packet explains the steps required of contractors in the City of Seattle Department of Transportation Street Improvement permitting process.

View or download the Contractor Packet | PDF

The packet contains the following information:

  • Pre-Construction information,
    • including, typical topics of discussion during the pre-construction meeting, sample form for a notice of pre-construction form, sample form for a summary of meeting results, sample form for a request for approval of material sources


  • Street Improvement Survey Guidelines
  • Sample Notice of Final Inspection
  • Sample Notice to Permittee

SIP Plan Preparation

  • Seattle Public Utilities Survey Requirements for Plan Review
  • Seattle Public Utilities CAD resources for Plan Preparation
  • Drafting and Standards Checklist for Street Improvement Plan Submittal | PDF
  • General Notes for Street Improvement Plan Review | PDF
  • General Signal Notes for Plan Review Street Improvement Plan Review | PDF
  • General Sewer and Drainage Notes for Street Improvement Plan Review | PDF
  • Application for Design Review for Platting of Full Subdivisions | PDF
  • Application for Design Review for Street Improvement Permit | PDF
    * note: The Application for Design Review has been consolidated into the SIP application
  • Application for Street Improvement Permit | PDF
  • Letter of Authorization | PDF
  • Templates for Street Improvement plan title blocks
    • AutoCAD file release 13 | DWG
    • AutoCAD file release 14 | DWG
    • Other CADD applications | DXF
    • File containing all three of the above title block files | ZIP

    If you are having trouble opening these files via your browser, try saving them to your desktop and opening them from there. To do this, right click on the link and select "Save Target As..."


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