Preservation of Trees During Construction: A Multi-Disciplinary Approach

1-Day workshop. Lunch is provided.

Friday, April 11th 8:30 a.m.– 4:00 p.m.

Environmental Learning Center at Clackamas Community College, Oregon City Campus

Clackamas Community College, 0.7 CEU (7.0 PDH); OLCB, 7.0 CEH; ISA, 7.0 CEU; Award of Completion will be provided.

This workshop will cover the basic principles of tree preservation for numerous professions involved in property development and construction projects (e.g. consulting and municipal arborists, tree care workers, engineers, architects, planners, real estate developers, and sitework construction trades). A multi-disciplinary approach is emphasized, because careful coordination throughout all phases of construction helps to ensure successful preservation of existing trees. Consulting arborists will share the process as laid out in the newest edition of Managing Trees During Site Development and Construction Best Management Practices. They will also review real-world project examples that were successful, as well as some that presented opportunities for improvement.

Ryan Gilpin is the Principal Consultant at Nidus Consulting in Portland, Oregon. Ryan specializes in tree and construction projects, completing hundreds of projects and training several consulting arborists along the way. He is chair of the Tree Care for Birds Committee, regularly trains arborists in working responsibly around wildlife, and leads tree and bird walks in the Portland area. He is co-author of two Best Management Practices: WCISA’s Tree Care for Birds and ISA’s Managing Trees During Construction BMPs.

Kyle Offerdahl has been practicing arboriculture since 2007. He is President of General Tree Service and Owner/Principal at Pacific Consulting Arborists. Originally from the Chicago suburbs, Kyle earned his bachelor’s degree from Western Illinois University. Kyle’s passion for tree care began in college while working in the landscape design business. He is an ASCA Registered Consulting Arborist, a Board-Certified Master Arborist®, ISA Tree Risk Assessment Qualified, ISA Certified Arborist Municipal Specialist, and he is Tree and Plant Appraisal Qualified through ASCA. Kyle has acted as Vice President of the Oregon Landscape Contractors Association, he currently sits on the ANSI A300 committee, and he is an Ambassador for the American Society of Consulting Arborists. Kyle has been published in The Arborist Consultant magazine. In Kyle’s free time, he enjoys spending time with his wife and daughter, weightlifting, and working in his garden.

Jennifer Killian (she/her) is a Community Assistance Forester for Oregon Department of Forestry. In her home state of Wisconsin, Jennifer’s interest in municipal forestry was sparked while working for the state Department of Agriculture’s Emerald Ash Borer team, which discovered the beetle for the first time in 2008. She is an ISA Certified Arborist, Qualified Tree Risk Assessor and certified in Wildfire Risk Reduction. Outside of work, Jennifer enjoys being a semi-professional cake baker, triathlete, heart attack survivor, and her favorite role, new mom.

• Communicate the importance of trees and the benefits of preserving trees during construction.
• Identify and implement regional tree protection codes.
• Outline strategies for protecting trees in each phase of development.
• Follow best management practices to collect necessary tree data during the planning phase for the development of a tree preservation plan.
• Articulate why a collaborative approach is required to protect existing trees from damage during construction.

• Explore new research about the ecosystem benefits of trees as a keystone factor for retention during construction projects.
• Outdoor demonstration of exploratory root trenching
• Creative solutions to protecting trees during construction
• Discuss the most recent: International Society of Arboriculture Best Management Practices: Managing Trees during Site development and Construction 3rd Edition
• Tree viability from the impacts of construction
• Which trees should we focus on preserving
• Important details of local ordinances
• Tree protection during each phase of development

Standard - $250

Student/AmeriCorps - $125

If registering after April 8th, we will make every effort to provide lunch, but it may not be possible.

Reduced Pricing: We have a limited amount of funds available that can reduce the cost of your registration by 30% for those eligible. These dollars are for those with limited resources. If you are interested in applying, please select the "Apply for Reduced Pricing" ticket and we will follow up with you.

Cancellations are allowed up to 1-day prior to the start of class, however, refund amounts vary based on when you notify us of your cancellation.

• >14 days prior to event: Full refund, excluding Eventbrite fees

• 1-14 days prior to event: 50% refund, excluding Eventbrite fees

Please contact [email protected] if the cancellation is due to illness or family emergency. We will work with you on a case by case basis, and may be able to apply your registration fee toward a future workshop.

Host or Publisher Environmental Learning Center