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Potholes start in cold temperatures when groundwater freezes and expands. Once the ground thaws out, it returns to a normal level. But, pavement pushed up during the ground freeze remains raised. This causes a gap between the pavement and the ground. Vehicles riding over these gaps cause the road surface to crack and fall into that hollow space.
The City welcomes reports from drivers about roadways in need of repair. Providing us with the exact location (for example, outside southbound lane on 148 Avenue NE just north of NE 70 Street) will help speed response time. To report a pothole call 425-556-2821 or email Street Operations.
Use the City’s new request management system to report non-emergency issues, make requests, and find answers to common questions.