HomeMy WebLinkAboutRS_GrayReport_230306_v1Liberty Park Cottonwoods - Worklist & Notes
After the recent failure of a large Cottonwood in the midst of this row of trees along the Cedar
River a thorough review of tree conditions was undertaken. Most of the trees are tall and
mature, some are leaning and some have unbalanced crowns. Other trees have substantial
basal decay pockets and/or large upper canopy deadwood. Ground heave is visible at the base
of one of the larger trees. To mitigate the risk of whole tree failure to the South toward a city
building mirroring the recent event, the proposed pruning will help reduce the lever arm action
in the upper canopies and thereby reduce the forces acting on what appears to be the friable
and unstable soil structure of the riverbank.
• Access for equipment is limited, but a chip truck and chipper may be staged off Houser
Way.
• The gate entrance and path adjacent to the trees on the riverbank may accommodate a
spider lift
• Branches or pruned sections may not be dropped in the river – all debris must be rigged
and lowered
• Large sections of branches or stems may be wedged behind the tree trunks on the bank
above
Tree Species ID# DBH Notes
1 Cottonwood 24589 72 Reduce top to lateral
2 Cottonwood 24590 28 Reduce top to lateral
3 Cottonwood 24592 42 Remove branches to trunk
4 Cottonwood 24596 44 Remove codominant stem
5 Cottonwood 24598 69 Remove codominant stem
6 Cottonwood 24605 74 Remove branches to trunk
7 Cottonwood 24607 68 Remove branches to trunk
8 Cottonwood 24580 72 Remove branches to trunk and reduce tip weight on others