Emergency Service Network (ESN)

Be prepared

When Metro may activate the ESN

Emergency Service Network System Map

During the worst weather or other emergency conditions, Metro may activate its Emergency Service Network (ESN). That means Metro service will be severely reduced to core bus routes and shuttles serving only key arterials and transit centers. Some neighborhoods and areas of the county may have limited or no bus service because of difficult travel conditions or geography.

When the ESN is activated, the Service Area Map on this page will be blue. Metro will also send alerts to all customers who have signed up for Metro Transit Alerts. Customers without internet access should pay close attention to television, radio and other media for weather bulletins that refer to "Metro's Emergency Service Network."

The ESN is designed to be reliable during the most severe weather conditions. Each ESN route will follow its regular or adverse weather routing as described in its timetable. Routes 2, 71, 90, 102, 221, 255, 348 and the C-Line operate as shuttles for all or portions of their routing. Passengers may have to transfer to another coach.

ESN Routes

The table below lists the origins and destinations for the routes in operation when the ESN is in effect. You can also download a system map showing core bus routes and shuttles (PDF).

Route # Destination Route Map
2 Shuttle West Queen Anne circulator Map
3 South Downtown Seattle – Madrona Map
4 North Downtown Seattle – North Queen Anne Map
5 Downtown Seattle – Greenwoood – Shoreline Map
7 Downtown Seattle – Rainier Beach Map
10 Downtown Seattle – Capitol Hill Map
16 Downtown Seattle – Northgate Map
21 Downtown Seattle – Westwood Village Map
24 Downtown Seattle – Magnolia Map
26 Downtown Seattle – East Greenlake Map
31 University District – Magnolia Map
32 University District – Seattle Center Map
36 Downtown Seattle – Othello Station Map
40 Downtown Seattle – Northgate Map
41 Downtown Seattle – Lake City Map
44 Ballard – Montlake Map
48 Mount Baker – Loyal Heights Map
65 University District – Lake City Map
70 Downtown Seattle – University District Map
71 Downtown Seattle – Wedgwood Map
75 University District – Northgate Map
90 Downtown Seattle – Capitol Hill Map
101 Downtown Seattle – Renton Map
102 Shuttle Renton – Fairwood* Map
106 Downtown Seattle – Renton Map
120 Downtown Seattle – Burien Map
128 Admiral District – Southcenter Map
140 Renton – Burien Map
150 Downtown Seattle – Kent Map
166 Kent – Des Moines – Burien Map
168 Kent – Maple Valley Map
169 Renton – Kent Map
180 Burien – Kent – Auburn Map
181 Green River CC – Twin Lakes P&R Map
218 Shuttle Issaquah Transit Center – Issaquah Highlands P&R Map
221 Eastgate – Redmond Map
235 Bellevue – Kirkland Map
245 Factoria – Kirkland Map
248 Kirkland – Avondale Map
255 Downtown Seattle – Kirkland – Brickyard P&R Map
271 University District – Issaquah Map
331 Kenmore – Shoreline Map
345 Northgate – Shoreline Map
348 Northgate – Richmond Beach Map
358 Downtown Seattle – Aurora Village Map
372 University District – Woodinville* Map
ST 522 Downtown Seattle – Woodinville Map
ST 545 Downtown Seattle – Redmond Map
ST 550 Downtown Seattle – Bellevue Map
ST 554 Downtown Seattle – Issaquah Map
RapidRide A Line Tukwila – Federal Way Map
RapidRide B Line Redmond – Bellevue Map
RapidRide C Line Downtown Seattle – Westwood Village Map
RapidRide D Line Downtown Seattle – Crown Hill Map
*Weekday only

Metro's Route 90

Special snow service for downtown Seattle, First Hill and Capitol Hill

When the Central Seattle area color in the Service Area Map turns RED, Metro will also activate service on its special Route 90 circulator route. The Route 90 number will not be on the bus stop signs; however, Route 90 will serve all bus stops shown in the Service Area Map. Route 90 will provide about three trips per hour and operate weekdays between approximately 5:30 a.m. to 11:30 p.m. Route 90 also operates when the Service Area Map turns BLUE, meaning the ESN is in place.

Service Area Map

If this map is blue, then all buses are on emergency routes.

  • Central Seattle
  • East King County
  • North King County
  • North Seattle
  • South Seattle
  • Southeast King County
  • Southwest King County

The King County Department of Transportation is providing this information as a service to the general public. While every attempt is made to provide accurate and timely information, estimates of the nature and duration of any particular route change or other event are subject to conditions beyond the control of King County and are difficult to predict. Those relying on this information should do so at their own risk, and neither King County nor any of its employees or agents shall be liable for the accuracy of this information or any actions taken as a result.