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A. Purpose. This section ensures visual impacts from the construction of public and private infrastructure are mitigated through landscaping and design standards.

B. Financial Surety. A financial surety in the amount of 150 percent of the cost of plant material, mulch, labor for installation and maintenance shall be required for a period of two growing seasons after installation of any landscaping required by this title.

C. Street Trees. All land divisions shall provide street trees in accordance with BMC Title 13 and BMC 20.12.030(D)(1) at a rate of one tree for every 50 feet of existing and proposed street frontages.

D. Open Storm Water Facilities. The perimeter of any open storm water facility, which includes the maintenance road, located adjacent to a residential lot or visible from a public street or public trail shall be landscaped with a mix of trees, shrubs and ground cover as defined by BMC 20.08.020. If the design of the storm water facility does not allow landscaping around the perimeter or within the facility, a minimum setback of 10 feet shall be provided around the perimeter of the facility for landscaping purposes.

E. Detention Vaults. Detention vaults constructed as a result of a land division shall not be exposed more than two feet above finished grade on any side unless the exposed walls of the vaults are finished with a material or design that will blend in with the existing landscape to avoid the creation of blank walls. Landscaping may also be required to mitigate the exposed portion of the walls and associated maintenance roads consistent with the perimeter landscaping provisions above for open storm water facilities.

F. Retaining Walls. Any retaining wall supporting required public or private infrastructure exposed greater than two feet above grade shall be designed to blend visually with the site. Concrete walls shall be finished with a material that will hide the form panel seams and tie holes. Block walls shall be textured.

G. A site plan demonstrating how the landscaping and design standards required by this section will be met shall be submitted to the city for review and approval concurrently with an application for a public facilities construction agreement and/or land use applications if the subdivision does not require a public facilities construction agreement. [Ord. 2024-02-004 § 7; Ord. 2018-12-036 § 2 (Exh. A)].