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CG Base Seattle Traffic Update


Google Maps directions to Base Seattle, courtesy LCDR Jonathan Stehn



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New ramp to the Base for those using I-5, courtesy RADM Bert Kinghorn:


1. Get off I-5 at the Edgar Martinez (4th Avenue S.) exit. 

2. Go west until you come to the very last stop light which is just before the viaduct.

3.  Against all your intuitive urges, turn RIGHT away from the CG Base which is right in front of you and onto a ramp that seems to lead to downtown Seattle. 

4.  The ramp will bend around toward Elliot Bay and finally dump you out on grade right in front of the Base. 

5.  Turn right into the base as normal when approaching from the North.


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Last Update: April 27, 2017

To view this information geographically, visit SDOT's Travelers Information Map

Click here to download the PDF of this information


April 21: Buses will drop-off and pick-up students at KeyArena for We Day. Expect congestion and delays in the South Lake Union neighborhood during the morning and afternoon commutes.

April 22 & 23: Southbound Fairview Ave. N. closed between Mercer and Republican St; northbound Fairview reduced to one lane.

April 22: SPD will escort the March for Science from Cal Anderson Park on Capitol Hill to the Seattle Center via Pine St. and 4th Ave.

April 24 - May 7: 6th Ave. reduced to one lane between Stewart St. and Westlake Ave. during roadway restoration work.

May 2: 3rd Ave. Arterial Paving Project begins (Virginia to Broad). First phase will reduce 3rd Ave. to one lane in each direction between Virginia St. and Blanchard St. Project is expected to last 10 months.

Note: Information subject to change. Additional construction or events may be planned in the Seattle area.
Questions? Contact:
construction.coordination@seattle.gov or call 206-684-ROAD


WEBMASTER'S NOTE:  We update this page weekly.  Please observe any barricades, be very careful in crosswalks, and watch for pedestrians and bicycles along Alaskan Way.  Click  HERE  for information about the area near Base Seattle (SODO).