1. Spokane Street Viaduct Construction Traffic Information

2. PROJECT TIMELINE BEFORE AFTER SR 99 1 st Ave S 4 th Ave S S Spokane St P.2 4 th Ave S Ramp Spokane Viaduct Widening E 3 Bus Way 6 th Ave S SOUTH SPOKANE STREET PROJECT OVERVIEWS Oct 2008 – Jul 2010 New 4 th Avenue S Ramp May 2009 – May 2011 Spokane Viaduct Widening & New Ramp Substantial Completion Eastbound Westbound Eastbound Westbound Begin Ramp SPU Water Line Relocation SPU Water Line Relocation

3. SR 99 1 st Ave S 4 th Ave S S Spokane St E 3 Bus Way 6 th Ave S PROJECT TIMELINE P.3 SURFACE DETOUR CONSTRUCTION PERIOD: JUL 2008 – OCT 2008 SPU Jul 2008 – Oct 2008 Eastbound Lower Roadway Closures Local access maintained for businesses SPU Water Line Relocation

4. SURFACE DETOUR PROJECT TIMELINE B Oct 2008 – Dec 2008 B A A B EB Lower Closures SR 99 1 st Ave S 4 th Ave S S Spokane St P.4 E 3 Bus Way 6 th Ave S CONSTRUCTION PERIOD: OCT 2008 – DEC 2008 A Oct 2008 – Apr 2010 Eastbound Lower Roadway Closures Local access maintained for businesses

5. SURFACE DETOUR PROJECT TIMELINE C Jan 2009 – Mar 2009 C A A B C EB Lower Closures SR 99 1 st Ave S 4 th Ave S S Spokane St P.5 E 3 Bus Way 6 th Ave S CONSTRUCTION PERIOD: JAN 2009 – APR 2009 A Oct 2008 – Apr 2010 Eastbound Lower Roadway Closures Local access maintained for businesses

6. SURFACE DETOUR PROJECT TIMELINE A A B C EB Lower Closures SR 99 1 st Ave S 4 th Ave S S Spokane St P.6 E 3 Bus Way 6 th Ave S WB Lower Closures CONSTRUCTION PERIOD: MAY 2009 – NOV 2009 A Oct 2008 – Apr 2010 Eastbound Lower Roadway Closures Local access maintained for businesses May 2009 – May 2011 Westbound Lower Roadway Closures Local access maintained for businesses

7. SURFACE DETOUR PROJECT TIMELINE A B C EB Lower Closures SR 99 1 st Ave S 4 th Ave S S Spokane St P.7 E 3 Bus Way 6 th Ave S WB Lower Closures D D WB Upper Single Lane CONSTRUCTION PERIOD: DEC 2009 – MAR 2010 A Oct 2008 – Apr 2010 Eastbound Lower Roadway Closures Local access maintained for businesses May 2009 – May 2011 Westbound Lower Roadway Closures Local access maintained for businesses D Dec 2009 – Mar 2010 WB Upper Roadway Single Lane

8. SURFACE DETOUR PROJECT TIMELINE A B C EB Lower Closures SR 99 1 st Ave S 4 th Ave S S Spokane St P.8 E 3 Bus Way 6 th Ave S WB Lower Closures D EB Upper Single Lane WB Upper Single Lane 1 st Ave S Ramp Open 4 th Ave S Ramp Closed/Demolished Eastbound Lower- Roadway Re-Opens CONSTRUCTION PERIOD: APR 2010 – JUL 2010 May 2009 – May 2011 Westbound Lower Roadway Closures Local access maintained for businesses May 2010 – Jul 2010 EB Upper Roadway Single Lane

9. SURFACE DETOUR PROJECT TIMELINE A B C EB Lower Closures SR 99 1 st Ave S 4 th Ave S S Spokane St P.9 E 3 Bus Way 6 th Ave S WB Lower Closures D EB Upper Single Lane E WB Upper Single Lane E 4 th Ave S Off Ramp Open CONSTRUCTION PERIOD: AUG 2010 – JAN 2011 May 2009 – May 2011 Westbound Lower Roadway Closures Local access maintained for businesses E Aug 2010 – Jan 2011 WB Upper Roadway Single Lane

10. SURFACE DETOUR PROJECT TIMELINE A B C EB Lower Closures SR 99 1 st Ave S 4 th Ave S S Spokane St P.10 E 3 Bus Way 6 th Ave S WB Lower Closures D EB Upper Single Lane E WB Upper Single Lane CONSTRUCTION PERIOD: FEB 2011 – MAY 2011 May 2009 – May 2011 Westbound Lower Roadway Closures Local access maintained for businesses