VISION: Promote the green in greenway. Create a greenway environment where users can experience the region’s natural features throughout the system.
|SHOWCASE THE NATURAL ENVIRONMENT
|CREATE A SUCCESSFUL INSTALLATION
|DESIGN A LANDSCAPE THAT IS MAINTAINABLE
The targets below are to serve as a guide in the development of the greenway landscape. Targets are aspirational, and should be seen as system-wide. On each typical project, designers should work to meet these targets. However, some projects may exceed targets while others may be below – but this should be based on project specific constraints.
CANOPY COVER AND SHADE
|Survivability of installed canopy and understory trees
|90% survivability through establishment (3 years or more).
|Trail surface canopy cover
|Minimum of 30% canopy/understory tree or other shade cover over trail surface is the desired goal to be achieved within ten years of installation.
|Shade at seating areas
|Provide shade at all seating areas; provide options for artificial shade in areas that do not allow for tree planting such as levees. Consider shade provided by buildings in urban areas.
SPECIES DIVERSITY AND TURF
|Minimum of 20 species of combined canopy and understory trees to be used per trail segment implementation.
|75% of invasives to be removed in greenway corridor prior to trail installation.
|Native Plant Percentage
|Use of 90% native plant species or native cultivars to be used in the greenway corridor (100’ wide).