Advanced Tree Risk
Assessment Workshops
Workshop
Narrative
This
comprehensive workshop covers one and a half days and twelve hours
of instruction. The course will be divided between time in the
class and field. The primary focus of discussion will be centered
on providing participants with a high level of competency in
understanding tree biology; tree mechanics; the different forces
applied to trees; structural defects and the interaction of all
factors on determining failure potential. An additional focus will
be on developing achievable and defensible tree risk management
strategies. Subject matter was developed for both municipal
foresters and private sector arborists in mind. Numerous
thought-provoking failure and analysis demonstrations have been
created specifically for this advanced course.
Mark
Duntemann
Mark Duntemann
is the owner of Natural Path Urban Forestry Consultants. He is also
on the Board for both the Illinois Arborist Association, the
Illinois Forestry Association and Co-Chairs the Illinois Urban
Forestry Council. He received his Bachelors of Science in Forestry
from the University of Montana and a Master of Science in Urban
Forestry from the University of Wisconsin - Madison. Mark formed
the business in 1988. He works primarily with municipal, State and
Federal Agencies developing proactive urban forestry maintenance and
management policies. His work extends past the borders of the
United States to include Canada, Europe and South America. In
addition, Mark has provided expert witness testimony in dozens of
tree-related fatality and personal injury cases; and tree appraisal
cases. The advanced workshop curriculum was derived from this
experience.
Locations and
Dates
DAY 1 8:00
to 4:30 (with lunch and breaks)
8:00
Tree Biology and Mechanics - This comprehensive session will
review wood structure and the affect of decay on that structure.
Discussion will also cover the different applied forces and
resulting affects on tree mechanics.
9:45
Structural Defects - Eight categories of defects will be
discussed in detail. The identification and interaction between
multiple defects will be reviewed.
10:45
Decay Fungi - Identification of five primary decay fungus and
their relevance on tree structural integrity will be covered.
11:30
Tree Risk Assessment Guidelines - Review the methodology
behind the assessment of an individual tree. A protocol for
participants will be defined.
12:45
Structural Defects and Their Affects - This exciting
component of the workshop will be centered on the following three
stations:
12:45
Station 1 - A large diameter Silver Maple with a known cavity
of unknown size, will be cut in vertical cross section while still
in place. Discussion will focus on understanding and measuring the
extent of decay and identifying potential external indicators.
1:30 Station 2 - A measured force will be applied to a tree with a significant
appressed fork to gauge the forces required to cause failure.
2:15 Station 3 - A tree with known basal decay will be analyzed. The complete root
system of the tree will be exposed and dissected to determine the
extent of decay.
3:00
Target - Discussion on assigning target values on both
private and residential properties to prioritize actions.
3:45
Field Assessment - Evaluate a tree on both public and private
property. The focus of dialogue will be on mitigation strategies.
DAY 2 8:00
to 12:00 (with breaks)
8:00
Risk As it Applies to Trees - Review the main components of a
risk management program and how it applies to the management of
trees for both public sector agencies and private sector
businesses.
8:45
Risk Zone Map - Hands on exercise where participants will
develop a risk zone map for a municipality and a residential
property. The risk zone map is the basis for the development of a
long-term inspection program.
10:15
The Court Arena - Covers three recent cases in Illinois that
highlight many of the numerous issues confronted by arborists and
municipalities in litigation.
11:15
Elements of a Defensible Program - The workshop will conclude
with a discussion centered on a decision matrix that defines a range
of options for six elements of a defensible tree risk management
program.
Limited Seating
This course is
worth 10 ISA CEU's, 12 IPRA CEU's and 10 APWA CEU's
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