Explore damage prevention information, local contacts and rules for safe digging in Washington.
Washington Utility Notification Center
Information
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811 or 800-424-5555
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Visit Website
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24 / 7
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WA 811
P.O. Box 4796
South Colby, WA. 98384
Advanced Notice
2 business days
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
2 business days
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
Marks Valid
Valid for the life of the ticket (45 days)
Valid for the life of the ticket (45 days)
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