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  1. Programs Programs offered by the Seattle Department of Transportation
  2. Permits Information about permits issued by the Seattle Department of Transportation
  3. Interactive Maps Maps of Seattle Department of Transportation services
  4. Report a Problem Let us know about it and we’ll help fix it. You find it, we fix it! Whether it’s a broken sign, malfunctioning traffic signal, pothole, or ...
  5. Trees & Utilities Trees & Utilities Underground Utilities There are many utilities commonly located under planting strips and your front yard that ...
  6. Yard Trees Yard Trees Yard trees add character and beauty to Seattle’s neighborhoods.  Did you know that 67% of the land area in Seattle is ...
  7. Street Trees Street Trees What's a Street Tree? In Seattle, street trees are regulated by the Seattle Department of Transportation (SDOT). A ...
  8. Young Tree Care Young Tree Care The first five years are critical to the development of your young tree. Follow these guidelines to ensure a healthy ...
  9. Mulching Your Tree Mulch Arguably there is nothing you can do for your tree that is more beneficial than mulch. Proper mulching helps your tree get enough ...
  10. Tree Selection Tree Selection Right Tree, Right Place A well placed tree can help conserve energy, provide a visual screen, and provide years of ...
  11. Mature Tree Care Mature Tree Care Older trees need care too! Here's how: Mulch! A 2-4” thick layer of wood bark mulch around a tree makes all the ...
  12. Staking Your Tree Staking Staking is a practice used to anchor, support, and protect recently planted trees. Trees are often staked unnecessarily and ...
  13. Structural Pruning Pruning Pruning young trees to build strong structure is critical to growing a healthy mature tree and avoiding dangerous or unsightly limb ...
  14. Protect Trees From Damage Protecting A healthy tree is generally hardy and resilient. Yet even the healthiest tree can be damaged or killed by common practices. ...
  15. Work Plans Work Plans Each year the Urban Forestry Core Team creates a work plan based on the actions identified in the Urban Forest Stewardship Plan. ...
  16. Seattle's Canopy Cover Canopy Cover Imagine you were in an airplane flying over the City in summer, as you look down, tree leaves and branches would block ...
  17. Progress Reports Progress Reports Every year the City of Seattle evaluates progress toward our goal of increasing tree canopy cover to 30%. Work is ...
  18. Ecosystem Services Ecosystem Services Your Trees Count! The Green Cities Research Alliance is happy to announce the publication of "Seattle's Forest ...
  19. Urban Heat and Trees Work Plans Urban heat in our increasingly hot, dry summers can be extreme and dangerous. The urban heat island effect describes how ...
  20. Tree Service Provider Directory A searchable directory of the Tree Service Providers who have registered with the City of Seattle in order to conduct tree services in ...
  21. Report and Monitor Report and monitor pest invasion signs/symptoms If you have significant tree damage, obvious signs of invasive pests, or even an ...
  22. Ecosystem Services Ecosystem Services Your Trees Count! The Green Cities Research Alliance is happy to announce the publication of "Seattle's Forest ...
  23. Insect Pests Insects Bronze birch borer   Here in WA State: Yes Infests: some types of birch trees Symptoms: Their infestation is evident ...
  24. Diseases of Trees Disease Pests Dutch elm disease   Here in WA State: Yes  Infects: American elms  Symptoms: yellowing and wilting leaves which ...
  25. Restoration Starts At Home Restoration Starts At Home You can help restore Seattle’s urban forest by starting in your own backyard! Removing invasive plants is ...