Washington
Washington
Explore damage prevention information, local contacts and rules for safe digging in Washington.
One Call Centers
811 or1-800-424-5555
Address:
305 NE 102nd AvenueSuite 300
Portland OR 97220-4170
Hours:
24 / 7Advance Notice:
2 business daysNumber of days in advance of a digging project that you need to notify the one call center of your intent to dig.
