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HomeMy WebLinkAbout2009-07-21 Arborist CommentsJulie Hultman From: Sent: To: Subject: C P H Staff - Kathy Widin Arborist City of Oak Park Heights K.D. Widin [kdwidin a©comcast. net] Tuesday, July 21, 2009 10:11 PM Eric Johnson; Mark Vierling (E- mail); Dennis Postler (E- mail); Scott Richards; Jimmy Butler; Judy Hoist; Julie Hultman; Tom Ozzello; terickson@ffe-inc.com Carriage House Cooperative and Oakgreen Commons - Follow -Up Tree Inspection Along Oakgreen Frontage At the request of city staff, l inspected the remaining trees on the Oakgreen Ave. frontage for the Carriage House Cooperative and Oakgreen Commons project. A number of these trees have been damaged by heat from the fires used to destroy the houses on the west side of Oakgreen Ave.. My observations and comments regarding tree removal and pruning are as follows, going from S to N along Oakgreen Ave.: 1. #25067 - silver maple - has broken branches from prior storm damage - prune 2. no tag - boxelder - 8 in. diam. - misshapen, should be removed 3. no tag - ash - 5 in. diam. - growing next to bur oak - remove 4. no tag - bur oak - 6 in. diem. - heat damage but re- leafing and will probably survive 5. #25131 - ash - 18 in. diam.- has several broken, hanging branches - prune 6. #25132 - willow - 15 in. diam. - has decay at base and is a risk - remove 7. #25186 - Colo. spruce - 16 in. diam. - has many branches on the top portion of the tree which have been damaged as a result of heat injury and will not re- foliate - remove 8. no tag - Norway maple - 18 in. diam. - trunk decay and defects - heat injury and only re- leafing a little - remove 9. #25215 - red maple - 28 in. diam. - heat injury but is re- leafing - may lose some limbs 10. #25236 - willow - >60 in. diam. - trunk decay and a risk - tree must be removed 11. #25240 - catalpa - 16 in. diam. - some heat injury to top of the tree but is re- leafing - may lose some limbs Most of the trees with heat injury should recover, though the canopies will undoubtedly be thinner next year due to damage from the fires. The only tree which should be removed as a result of the heat injury is #25186 and removal of this tree should not change the previously calculated tree replacement requirement. The other trees which are recommended for removal are either too small or pose a risk so that they were not included in the original tree removal /replacement calculations. Note: now that other nearby trees and the houses have been removed, it is evident that a number of the spruce left on the Oakgreen Ave. frontage are in poor condition and will probably not be good landscape specimens once the project is built and landscaping completed. The developer should consider removal and replacement with 12 -14 foot evergreens in good condition. Please contact me if you have any questions regarding this inspection and report. 1