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Madsen Creek stabilization project photo


This mission of the Capital Services Unit is to protect public health, property, and natural resources from flooding, soil erosion, and drainage problems caused by stormwater. This is done by through capital projects and programs that require planning, design, construction, managing multidisciplinary teams, and engaging residents and stakeholders.


To provide planning, design, and implementation of capital projects that manage storm and surface water runoff to protect people, property, and the environment and comply with county, state, and federal requirements.

Capital projects

For more information about the Capital Services Unit, please contact Lorraine Lai, Supervising Engineer, Stormwater Services, Water and Land Resources Division, King County Department of Natural Resources and Parks.