I have a municipality that have asked me to give them a proposition for risk assessment in three parks, roughly 1100 trees. They have no idea how to go about this, so I was thinking of doing it this way:
- Level 1 walk by assessment with a 360 degree observation of each tree. Note only major defects or areas of concern for safety (decay, conks, fungus, cracks, dead branches, lean, etc.) No notes about tree health or insect/disease problems.
- No recommendations on my part, the muni will decide which trees should be inspected further and we will make them a proposition at that point.
- They are providing inventory info with geolocalisation of each tree.
So, how much time per tree on average? I was thinking 4-5 minutes including prep and documenting/reporting. I kind of tried it out at one of the parks, lots of trees go quickly, then some take a little longer.
4 minutes per = 73 hours
5 minutes per = 92 hours