Drainage & Road Flooding

As a stormwater utility, SWM provides a variety of services for ratepayers to keep people safe and to keep our rivers, lakes, streams, and Puget Sound healthy. Drainage related services are among the most visible in our community, especially during big rainstorms.

We are working for you to:

Culvert

Maintain a vast network of drainage ditches, pipes and culverts.

Drainage structure

Maintain structures that remove pollution from stormwater.

Failing pipe

Replace failing stormwater drainage infrastructure.

Drainage system construction project

Build projects to reduce flooding in your community.

Drainage problem - flooding

Help residents solve drainage problems on their property.

Report a Drainage Problem

Report a drainage problem in your neighborhood or request a drainage investigation.


If you have trouble using the drainage investigation request form contact our Drainage Services Coordinator via email or call 425-388-3464.