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The City of Portland, Oregon

Portland Parks & Recreation

Healthy Parks, Healthy Portland

Phone: 503-823-7529

1120 SW Fifth Avenue, Portland, OR 97204

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2017 Tree Inventory Season Begins!

By Tree Inventory Project Staff

Register for workdays and Team Leader Training now!

Portland Parks & Recreation Urban Forestry is gearing up for another inventory season! Since finishing our inventory of over 218,000 street trees, we’ve been busy analyzing the data and putting the finishing touches on the Citywide Street Tree Inventory Report. If you haven’t seen it yet—take a look!

But we know our volunteers wouldn’t want to stop there, so this year we’ll be inventorying trees in neighborhood parks across the city. We’re pleased to announce that we’ll be working alongside 9 Neighborhood Tree Teams in 12 parks this summer: 

  • Alberta Park
  • Arbor Lodge ParkCathedral Park
  • Berkeley Park
  • Bloomington Park
  • Brentwood Park
  • Cathedral Park
  • Irving Park
  • Midland Park
  • Normandale Park
  • Rose City Park
  • Ventura Park
  • Wilshire Park

Cathedral Park is one of the parks we'll inventory in 2017
photo credit: KOIN

For registration links and a full schedule of inventory events this summer, see our Workday Calendar. Just as with street trees, taking an inventory of trees in our parks aids in proactive management that optimizes their health and extends their lives while reducing risks to the public. Information collected as part of this inventory will tell us where trees will need to be replaced in the near future, locate space for new planting projects, and which species are most suited to our parks and their many users.                                                                   

Be an expert. Become a Tree Inventory Team Leader!

This new era of Parks Tree Inventory comes with new challenges: in addition to mapping each tree and measuring its diameter, we’ll be using new tools to take new measurements such as tree height and canopy spread. We’re even going to identify trees all the way to species level. You may know that tree is an oak, but which oak is it? Red? Scarlet? Pin? If you’ve never done this before, don’t worry – all skill levels are invited and project staff will supply you with all the training you need to identify the trees we’ll be meeting in our parks. Also new this year: the inventory goes paperless! We’ll be teaching our Team Leaders to collect information and map trees directly on mobile devices, updating our online tree inventory in real time! Register now for Team Leader Training.

Staff using clinometer to measure tree height

Inventory Coordinator Carrie Black demonstrates how to use a clinometer to measure tree height.

For questions, see the Tree Inventory Project webpage or contact us

posted 5/15/17