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Highline Public Schools
15675 Ambaum Blvd. SW Burien, WA 98166

Office Hours:

Monday-Friday: 7:30 a.m. - 4:30 p.m.

Sylvester Middle School
16222 Sylvester Road SW Burien, WA 98166

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All Schools Closed Monday, September 9

All Schools Closed Monday, September 9

All schools are closed on Monday, September 9. All school activities, athletics and meetings are canceled. Central office is open.

UPDATE: The vaccine clinic has been moved to a new location: Matt Griffin YMCA, at 3595 South 188th Street in SeaTac. The clinic is 3:00 to 6:00 p.m.

We have detected unauthorized activity on our technology systems and have taken immediate action to isolate critical systems. We are working closely with third-party, state and federal partners to safely restore and test our systems.  

We understand this comes as an unexpected disruption, particularly on the eve of the first day of kindergarten for many of our families. We recognize the burden this decision places on both families and staff, but student safety is our top priority, and we cannot have school without these critical systems in place. 

Here is a link to staff expectations during a school closure. Please refer to this information if you receive any questions. 

School and central office administrators are expected to report to work. Central office administrators may be deployed to schools if needed. 

The investigation is ongoing. We will notify staff and families by 2:00 p.m. on Monday if this disruption impacts schools on Tuesday. 

Thank you for your patience and understanding.