What Finally Getting a Formal Tree Risk Assessment Taught Me About My Own Property
I have lived in the same house in Monmouth County for twelve years. We have nine trees on the property, including a silver maple that is easily 60 years old and hangs over both the driveway and part of the roof line. For most of those twelve years, my approach to the maple was to look at it occasionally and decide it probably looked fine.
After a bad nor'easter three winters ago took a large limb off a neighbor's oak and landed it across their car, I started thinking about the maple differently. I hired an arborist for what I thought would be a quick assessment. It ended up being a several-hour visit, and I learned more about that one tree in an afternoon than I had absorbed in over a decade of living next to it.
What I Expected Versus What Actually Happened
I expected the arborist to walk around for 20 minutes, tell me the maple was either fine or a problem, and leave me with a verbal summary I would immediately forget half of. What actually happened was more methodical than that.
The arborist, who held the ISA Tree Risk Assessment Qualification, spent about 40 minutes on the maple alone. He examined the root flare -- the area at the base where the trunk meets the ground -- and pointed out two features I had never thought to look at: a section where the bark had a slightly different texture indicating an old wound that had partially compartmentalized, and a root on the south side that had begun to gird another root, creating a structural instability that would not be visible to someone who had not specifically looked for it.
He also explained the difference between what he was doing and what an arborist without TRAQ training would do in the same situation. A general arborist could tell me the tree was mature and had some concerns. A formal risk assessor quantifies those concerns in a specific framework -- likelihood of failure, likelihood of hitting a target, consequence of that failure -- and produces documentation that means something to a permit office or an insurer.
The Report Was More Specific Than I Expected
The written report arrived about a week after the visit. It was longer than I anticipated, about seven pages for the five trees I had asked him to assess fully. The maple section included:
Photographs from multiple angles, including close shots of the root girdling concern and the old wound compartmentalization. Notes on the branch attachment angles, with one documented as included bark rather than raised bark, which he explained made the three largest co-dominant stems more failure-prone than they would appear from street level. A risk rating using the ISA's standard framework, which placed the maple at medium-high risk primarily because of its position over a high-value target (the driveway and roof) rather than because of its overall health, which was otherwise reasonable for its age. A recommendation for crown reduction to reduce the weight on the three co-dominant stems, plus a follow-up assessment in 18 months.
The report also recommended I contact Middletown tree care professionals for a second opinion on whether cabling was appropriate for the co-dominant stem attachment, given that the crown reduction recommendation was substantial enough that a second set of eyes before proceeding made sense.
What Changed After the Assessment
The assessment report changed how I think about the property. Before it, I had nine trees and a vague sense of which ones looked healthy. After it, I had a documented understanding of which trees had specific structural concerns, which were low-risk by any reasonable measure, and which one warranted action before another storm season.
I also finally had something to give my insurance agent when she asked whether any of my trees presented a risk. Before the assessment, that question made me uncomfortable because I did not have a good answer. After it, I had a formal document I could share that showed I had taken the question seriously and acted on professional guidance.
The International Society of Arboriculture has published materials explaining what formal assessments are supposed to contain, and it was useful to read those after I received my report so I could understand what I was looking at. The ISA's consumer resource at treesaregood.org is a good place to start if you have a report in hand and want to understand what the risk ratings mean in practical terms.
Photo by Ketut Subiyanto on Pexels
What I Would Do Differently
I would have done the assessment sooner. Twelve years is a long time to have a 60-foot silver maple overhanging a driveway with no formal documentation of its condition. The cost of the assessment was modest relative to what emergency removal of a failed maple in a driveway would have cost, or what a liability claim from a neighbor could have cost.
I also would have included more trees on the initial assessment. I limited my request to the five trees I was most uncertain about, which made sense at the time. In retrospect, establishing a baseline condition record for all nine trees at once would have been more useful than having a thorough picture of five and nothing on the others.
Other Monmouth County homeowners with mature trees near structures -- and that is a lot of us, given how densely planted a lot of these neighborhoods are -- will probably find the experience similar. The assessment is not as mysterious or expensive as it sounds. It is closer to a home inspection for your trees: a documented professional opinion on what you have, what condition it is in, and what action is warranted.
For anyone still on the fence about whether to schedule one, the local arborist community in Monmouth County includes TRAQ-qualified professionals. Hufnagel Tree Service in the county also publishes useful background on what to expect from professional tree care work. The NJ Division of Parks and Forestry has published guidance on tree care responsibilities for residential property owners that is worth reading before your first formal assessment visit.
Photo by Level 23 Media on Pexels
The Part That Surprised Me Most
The thing that surprised me most was how little I had actually known about my own trees before the assessment, despite living with them for over a decade. I had noticed when branches fell and when the leaves came in late one spring. I had not noticed the root girdling concern, the included bark attachment, or the old wound compartmentalization. None of those things were obvious to me. All of them were immediately visible to someone who knew what to look for.
That gap between what we notice as homeowners and what is actually happening in our trees is exactly why formal assessments are worth scheduling periodically, rather than trusting our own ability to identify emerging problems from a distance. The arborist is not there to tell you what you already know. The arborist is there to tell you what you cannot see.
