Tree protection

(a)

Tree protection during construction. Trees shall be protected during construction activity as determined by the department through the use of protective barriers in accordance with the landscape manual. Trees that are to remain shall be clearly identified with tags. Tree protection barriers shall be maintained around the trees in accordance with the tree protection plan approved by the department.

Prior to and during demolition, development, or construction, including installation of irrigation systems or any other underground installations, protective barriers shall be placed around the perimeter of each tree's TPZ and shall remain in place in order to prevent the destruction or damaging of roots, stems or crowns of such trees. The barriers shall remain in place and intact until approved landscape operations begin; however, barriers may be removed temporarily to accommodate construction needs, provided that the manner and purpose for such temporary removal will not harm the trees. The trees shall be properly irrigated throughout the building process. Trees damaged during construction shall be subject to the provisions of section 17-9.

(b)

Other tree requirements. Property owners shall protect the trees designated for preservation in the approved tree permit from chemical poisoning, excavation, grade changes, and any other potential tree abuse to at least the following minimum standards:

(1)

Utility line trenches. Utility line trenches and/or directional borings shall be routed away from the trees to an area outside the TPZ to the maximum extent possible.

(2)

Parking on site during construction or development activities. No parking, vehicle maintenance, storage of construction materials or debris, or cleaning of equipment shall take place within areas marked for preservation specifically including, but not limited to, within the TPZ of any individual trees or cluster of trees.

(Ord. No. 13670, § 2, 3-23-17)