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Mercer Corridor Project, SR 520 and Alaskan Way Viaduct Update
Mercer Corridor Project

Ongoing:  Mercer St. is reduced to two eastbound lanes (north side of Mercer St.) between 2nd Ave. N. and 5th Ave. N., and the sidewalk along the south side of Mercer are closed between 5th Ave. N and Dexter Ave. N. Mercer and Roy streets are scheduled to become two-way in mid-May 2014. Shortly after, Broad St. east of 5th Ave. N. will close permanently, and bike lane work will begin along 5th Ave. N. We are in an active period of activity associated with the Mercer Corridor Project. Please take into account the following as you route your way to and from Seattle Center.

Through April:  Please be aware of road, curb and sidewalk work along the south side of Mercer St. between 2nd and 5th avenues. Expect occasional weekday lane closures along eastbound Mercer St. between 2nd Ave. N. and Dexter Ave. N. will. The work will close parts of the sidewalk adjacent to Mercer St., and signs will mark access points to campus at the intersections of 3rd Ave. N. and 4th Ave. N. The best access to campus from Mercer Garage is via the Mercer Skybridge. For pedestrian detour routes, please click on:  Seattle Center Ped Map Final for April 2014.

Beginning in late April, travelers will experience MAJOR CORRIDOR CHANGES as crews begin converting Mercer St., Roy St. and Queen Anne Ave. N to two-way traffic. The transition to two-way traffic will occur in three phases:

Phase I:  Shifts the two eastbound traffic lanes of Mercer St. onto their permanent location on the south side of the roadway between 1st Ave. N and 5th Ave. N and installs channelization for the new westbound traffic lanes. Traffic signals will be activated, and Mercer St. will become two-way starting at 1st Ave. N and working toward 5th Ave. N over a period of several days.

Phase II:  Converts Roy St. to two-way traffic between Queen Anne Ave. N and 5th Ave. N. Westbound Roy St. will be reduced to one lane while final channelization is put into place. Signals will be activated for two-way traffic on Roy St. starting at 5th Ave. N and working toward Queen Anne Ave. N over a period of several days.

Phase III: Opens Mercer St. to two-way traffic between 5th Ave. N and 9th Ave. N and permanently closes Broad St. in late May (after Memorial Day weekend) or early June to allow for additional space to widen Mercer St. to the south at Dexter Ave. N and continue work associated with the Alaskan Way Viaduct Replacement Project.

Saturday, April 26 at 4 am to Monday, April 28 at 5 am:   Crews will close 5th Ave. N. between Roy and Republican streets. 5th Ave. N. Garage will remain open during the weekend closure, and we strongly recommend that Seattle Center patrons park in 5th Ave. N. Garage or 1st Ave. N. Garage to avoid road congestion around Mercer Garage. 
To access Mercer Garage from northbound 5th Ave. N., turn left on Republican St. to 4th Ave. N., and enter the Garage north of Mercer St.
Drivers leaving Seattle Center along Mercer St. may access southbound SR 99 at Valley St.(north on 4th Ave. N.  and east on Valley St.).
To access I-5 or northbound SR 99 from Mercer St., turn right onto southbound 5th Ave. N., turn left on Harrison St. and left on Broad St. OR take 4th Ave. N. north to Valley St., then east on Valley St. and south on Taylor Ave. N. to Mercer St. OR go west on Roy St., and south on Queen Anne Ave. N. to Denny Way/2nd Ave./5th Ave. and other downtown freeway access points.    
The closure of 5th Ave N. between Roy and Republicans streets will be repeated Friday, May 16 at 11 pm to Monday, May 19 at 5 am, however, there will not be an option to access I-5 from 5th Ave. N.

Friday, May 2 at 8 pm to Monday, May 4 at 5 am: Crews will fully close Dexter Ave. N. between Republican and Thomas streets. Harrison St. between Aurora Ave. N. and 8th Ave. N. will also be fully closed.    

Please note that the Mercer Corridor roadwork is weather dependent and may be rescheduled in the event of inclement weather. More information about alternate routes during construction may be found at: http://www.seattle.gov/transportation/mercercorridor.htm 

Until SR-99 Tunnel opens to traffic:  6th Ave N is closed between Thomas and Republican streets. Harrison St. is closed between Aurora Ave. N and Broad St. Republican St. is closed between Aurora Ave. N and 6th Ave N. 

For the SR-99 tunnel project, visit www.alaskanwayviaduct.org or call 1-888-298-5463.
King County Metro at www.kingcounty.gov/metro or call 206-553-3000.
Sound Transit at www.soundtransit.org
Community Transit at www.commtrans.org
Seattle Center Monorail at www.seattlemonorail.com



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April 26 Exhibition Hall

May 18 KeyArena
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April 25 -27; Armory, Fisher Pavilion, Seattle Center Pavilion
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