The Rose Garden location is topographically located within a depression and subject to stormwater flooding and wet soils. Water issues affect the usability of the site and the health of the roses and other garden plants.
To mitigate these concerns, a planted bioretention area was constructed in Summer 2020 to redirect and absorb stormwater runoff while providing water quality benefits. The planted bioretention area was designed to fit into the existing landscape and not deter from the beauty of the rose beds. Plants within the bioretention area will be a mix of native, ornamental grasses and pollinator-friendly flowering perennials and low shrubs. Planting for the bioretention area is scheduled for Fall 2020 by Parks horticultural staff.
Construction also included re-configuration and expansion to the existing stormwater infrastructure of drainage pipes and inlets. As the construction avoided impacts to existing garden features such as the fountain, arbor, and trees, several rose beds were temporarily removed in advance of construction. Roses are currently stored in an off-site area and maintained by Parks horticultural staff. Re-establishment of the rose beds will occur in Spring 2021.
Funding for this project is jointly provided by the Parks, Recreation and Cultural Resources Department and the Stormwater Management Division, Stormwater Quality Improvement Section.
SEPI Engineering and Construction, Inc.