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Martha Gardens Green Alleys
Design Features of the Alleys

Design features of the alleys

Key:
  1. Recycled flyash concrete, 6" thick
  2. Permeable concrete pavers, 3" thick
  3. Asphalt strip, 2" thick
  4. Fabric-lined trench
  5. Porous sand
  6. 12" perforated plastic pipe
  7. Porous stone
  8. Native soil
  9. Base rock