DEFINITION
The green alley is designed to reduce environmental impacts and discharges to the storm sewer system. The design will allow rain water to percolate through vegetation or porous pavement to the ground, providing natural drainage. Increased vegetation will filter storm water and may improve air quality.

AKA
country lane (in Vancouver, BC)

PERFORMANCE CRITERIA
stormwater runoff reduction, microclimate cooling, carbon sequestration, reduced material input

ILLUSTRATION


CASE STUDIES
27th Avenue Country Lane
Yale Street Country Lane
City Farmer's Country Lane

ADDITIONAL RESOURCES
blog post about Chicago Green Alley Initiative