Drainage problems can cause damage to your home, property and the City storm drain system. It is important to identify and correct drainage problems when they occur.
Before starting any drainage improvements, identify all parts of your current drainage system. Create a detailed map of your property, showing all impervious surfaces and drainage features. Kirkland Public Works can provide plans of the City storm drainage system in your area. This can help determine how your current system connects to the City’s system and aide the installation of new features.
- Consider concrete alternatives when planning new patios, paths or driveways. Use gravel, paving blocks, porous asphalt or other permeable materials to reduce runoff from impervious surfaces.
- Sweep your driveway instead of using a hose. This saves water and keeps dirt out of your drainage system.
- Avoid the use of wood chip mulch around yard inlets or swales. The wood chips float and are easily moved by runoff water.
- Use caution when placing trees or shrubs. The roots may grow into underground drainage pipes disrupting your drainage system.
- Add screens on gutters to help keep debris out of your drainage system.
- Install a removable connection between your downspouts and roof drains. Disconnecting downspouts during cleaning will help keep debris out of your drainage system.
There are many ways to reduce drainage problems on your property. A drainage system can divert water flow around and away from your home. You won’t need every item below, but installing one or several of them can make a big difference.
Drainage Solutions (PDF)
Property owners are responsible for the installation and maintenance of drainage structures on your property. If your drainage problems seem too big for you to correct, professional help is available.
There are many contractors and engineering firms that specialize in drainage problems. Search the phone book or internet under Drainage Contractors and Engineers – Drainage.
Homeowners must get building or grading permits before certain drainage projects bgein. To learn more about permit requirements, contact the City of Kirkland’s Building Division at (425) 587-3600.
Need assistance? Call 425-587-3800 or contact us via the Our Kirkland Customer Service Portal.