21.32.090 Street Trees.
A. Street tree species shall be consistent with other street tree species in the neighborhood and shall not result in significant maintenance issues as determined by the City’s Planning and Parks Departments’ recommendations.
B. Trees of the species determined by the Parks Department are required to be installed on principal, minor, and collector arterials, and on other streets as specified in neighborhood residential design standards, unless variations are approved by the Technical Committee in situations where tree species conflicts with utility lines, public access, driveways, or public street frontages.
C. On local streets not addressed in neighborhood standard, street trees may be planted by property owners, who are then responsible for maintenance of the trees in the street right-of-way.
D. Street trees shall be planted according to the guidelines outlined in the Landscape Standards.
E. Removal or excessive pruning of street trees without approval of the Administrator is prohibited.
F. The average spacing for street trees should be 30 feet on center and adjusted to allow for sight lines, utilities, traffic signs, light standards, driveways and other street appurtenances.
G. Trees on public streets shall be installed as follows:
1. Deciduous trees shall be planted at least two feet from the back of curb to center of tree in tree pits that measure four by six feet.
2. Coniferous trees shall be planted at least seven feet from the back of curb.
3. Tree wells shall meet the specifications of City Standard Details including CU-Structural Soil™ or approved alternative making equivalent provisions for tree and root health and infrastructure protection as determined by the City of Redmond Parks Department.
H. Planter strips and/or landscape strips shall be maintained by either the homeowners association or adjacent private property owner. (Ord. 2709; Ord. 3028)