HomeMy WebLinkAboutARCH-0161-2019 Arborist Report Proposed parking reconstruction outside patient tower
Date: January 17, 2022
Site: Proposed Reconfigured Parking Lot
Tree Number/Species: 8 Cinnamomum camphora
9 Tristania conferta
10 Platenus X acerfolia
17 Albizia julibrissin
15, 16 Quercus agrifolia
Observed –
#8 – (1 tree) Camphor – Somewhat of a thin canopy. The planter this is in is larger than most and
tree seems well rooted. Soil is not as compacted as some of the planters.
#9 – (7) Brisbane Box – Canopy health and vigor range from healthy to poor. These are planted
in a very narrow planter, and all are root bound. Soil is compacted and drains poorly. Roots are
breaking curbs, cracking and lifting walks and lifting pavement. Trees have outgrown the
planters.
#10 – (2) – London Plane – Trees are dormant so health cannot be fully assessed. Planted in
extremely small planters they are all root bound. Soil is compacted and poorly drained. I did note
some cankers on smaller branches and twigs. Trimming has been excessive, and they are skirted
up high. Trees likely will decline due to poor rooting conditions (small planters).
#15 (3) #16 (3) – Coast Live Oak – The smaller trees (#15) are healthy the larger trees (#16) that
are in larger planters are much healthier than those in small planters. Planters seem less
compacted than most on site. Drainage seems good.
#17 – (3) – Mimosa – Trees are medium size. Roots are somewhat surface with larger ones seen
above grade. Planters are small (about 6 foot) for such and aggressive rooting tree. Soil is
compacted and will not drain well. Since trees are dormant I could not assess the trees health.
Reason for removal – This parking is to be redone and reconfigured. Some new
structures/utilities are to be installed as well as walkways.
Chris Stier
ISA Certified Arborist WE9262-A
*Assessment was made with observation, history and sound arboricultural and horticultural knowledge. It is
always possible that other, or different problems exist that may contribute to the destabilization, decline and
death of trees. Further evaluation may be warranted if the steps above do not work. Construction activities can
seriously disrupt roots and soils and lead to long term problems that may directly or indirectly cause a tree to
decline and die.
This is a very narrow planter for the Brisbane Box. They have outgrown both the root zone and
the trunk (nearly encompasses width of planter). Note on the sidewalk the number of places that
planning was done to fix uneven/lifted walks. Pavement is also breaking due to roots.