Presentations

Handouts

Step 1: Guiding principles
 
WSDOT, King County and the City of Seattle began in December 2007 by developing and agreeing to a set of guiding principles that defined goals for any central waterfront solution.

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Partnership agreement (pdf 153 kb)
 
Guiding principles (pdf 34 kb)

Step 2: Measures
 
Measures provided a consistent way to evaluate various central waterfront options against the guiding principles.

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Revised central waterfront measures (pdf 50 kb)
 
Comments on measures and responses (pdf 114 kb)

Step 3: Building blocks
 
From January through April 2008, we developed building blocks, or strategies for keeping people and goods moving, in five different categories – surface streets, Interstate 5, transit, transportation policies and management, and State Route 99 replacements.

I-5 reconstruction projects presentation (pdf 1.2 Mb)
 
Policies and management presentation (pdf 2 Mb)
 
SR 99 building blocks - Part I (pdf 4.3 Mb) Part II (pdf 5.3 Mb)
 
Surface street building block elements presentation (pdf 2.5 Mb)
 
Transit strategies presentation (pdf 930 kb)

Complete list of potential building blocks (pdf 102 kb)
 
I-5 and surface streets building blocks (pdf 48 kb)
 
SR 99 building blocks (pdf 34 kb)
 
Transportation policies and management building blocks (pdf 49 kb)
 
Transit building blocks (pdf 60 kb)

Step 4: Grouping building blocks into scenarios
 
In June 2008, the agencies grouped the most promising building blocks into eight scenarios, or comprehensive solutions, for the central waterfront.

Scenarios introduction presentation (pdf 2.1 Mb)

Summary comparison of potential scenarios (pdf 189 kb)
 
Descriptions for the eight scenarios 
 
Scenario A: Demand management/low capital (pdf 4.2 Mb)
 
Scenario B: Surface boulevard (pdf 4.2 Mb)
 
Scenario C: Alaskan Way/Western Avenue couplet (pdf 1.2 Mb)
 
Scenario D: Four-lane elevated (pdf 1.2 Mb)
 
Scenario E: Four-lane integrated elevated (pdf 857 kb)
 
Scenario F: Four-lane bored tunnel (pdf 1.9 Mb)
 
Scenario G: Four-lane cut and cover tunnel (pdf 1.3 Mb)
 
Scenario H: Four-lane lidded trench (pdf 1.3 Mb)

Step 5: Scenario evaluation
 
During the summer and fall of 2008, the agencies evaluated the scenarios and gathered input from the Stakeholder Advisory Committee and the public.

Air quality and carbon footprint presentation
(pdf 158 kb)
 
Cost, construction and funding presentation (pdf 165 kb)
 
Economic evaluation presentation (pdf 331 kb)
 
Historic structures and districts presentation (pdf 98 kb)
 
Near shore habitat presentation (pdf 526 kb)
 
Open space presentation (pdf 2.7 Mb)
 
Parking presentation (pdf 102 kb)
 
Pedestrian connectivity presentation (pdf 444 kb)
 
Safety performance presentation (pdf 132 kb)
 
Seismic performance and design life presentation (pdf 99 kb)
 
Shadowing and view blocking presentation (pdf 101 kb)
 
Stormwater runoff presentation (pdf 98 kb)
 
Traffic noise presentation(pdf 150 kb)
 
Transit access to and on the waterfront presentation (pdf 587 kb)
 
Travel model results presentation (pdf 374 kb)

Guiding principles and evaluation measures schedule of results (pdf 40 kb) 
 
Summary of findings for the eight scenarios (pdf 327 kb)
 
Construction schedules handout (pdf 160 kb)
 
Cost estimates handout (pdf 67 kb)
 
Economic evaluation handout (pdf 90 kb)
 
Funding sources handout (pdf 63 kb)
 
Parking effects handout (pdf 138 kb)
 
Summary of evaluation findings presented in September 2008 (pdf 70 kb)
 
Travel modeling analysis handout (pdf 2.2 Mb)

Step 6: Hybrid scenarios
 
The hybrids combined the most promising components of the eight scenarios into new potential solutions.

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I-5, Surface and Transit Hybrid Scenario map (pdf 256 kb), fact sheet (pdf 136 kb)
 
SR 99 Elevated Bypass Hybrid Scenario map (pdf 294 kb), fact sheet (pdf 218 kb)
 
Description of potential hybrid scenarios (pdf 85 kb)
 
Building blocks included in the hybrid scenarios (pdf 134 kb)
 
Hybrid scenario cost summary (pdf 89 kb)

Executive recommendation
 
The Governor, County Executive and Mayor made their recommendation for a central waterfront solution in January 2009.

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Recommendation press release
 
Letter of agreement on recommended alternative (pdf 459 kb)
 
Executives' recommendation report (pdf 3.5 Mb)