Duvall Commons is a commercial development in the rapidly growing city of Duvall. Harmsen provided Landscape Architecture, Civil Engineering and Surveying services.
The Civil Engineering included reshaping the existing topography, which was primarily a hill, and creating a neighborhood commercial scene that prominently featured the proposed buildings, yet was easily accessible from a State Highway, major city arterial, and ADA accessible. The site utility design included sewer service extensions to the new buildings, water supply and fire coverage using hydrants and sprinkler supply lines, and appropriate metering and backflow prevention devices.
A stormwater collection system was designed to receive runoff from roof, pavement and landscape areas, and convey the runoff into an underground vault that was designed to provide both stormwater treatment and detention performance as required by local codes. Additional services included redesigning the arterial street for bike lanes, turning pockets, median curbing and crosswalk with protective island.
The results created an open neighborhood market feel that is welcomed by the community.
- Civil Engineering
- Landscape Architecture