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Below is a comprehensive offering of Silva Cell specifications, standard details and specifications, installation and design guidelines, and supporting documents. If you don’t find what you are looking for here please give us a call at (415) 781-9700 and we’ll try to supply it. For stormwater projects, please contact us directly or consult our schematics (below).

The Silva Cell is supported by the HydroCAD Stormwater Modeling System. (HydroCAD Stormwater Modeling provides easy TR‑20, TR‑55, SBUH, and Rational hydrology, plus TC calculations, pond storage, outlet hydraulics, pump routing, underground storage, pollutant loading, and more.)

To help ensure the success of your project, we require plan reviews for all Silva Cell projects. Submit your plan as early as possible, preferably at the schematic design stage, for the most flexibility. More information here (see Step #5)

Resource Downloads

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Document Type
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  • Design Documents
  • Construction Documents
  • Supporting Documents
  • Articles & Research
Silva Cell Details
Silva Cell Specifications
Silva Cell Soils Specification
Silva Cell Stormwater Details
Silva Cell Stormwater Sizing Manual
Silva Cell Stormwater Sizing Tool
Silva Cell Supplemental Details
Silva Cell Water + Air System Details
Silva Cell Revit File
Silva Cell CAD Blocks
Silva Cell CAD CTB File
Designing with the Simple Index Approach
Contractor Estimating Worksheet
Construction depths for Silva Cell 2
Silva Cell 2 Installation Instructions (English)
Operations and Maintenance Manual
Silva Cell 2 Installation Instructions (Spanish)
Silva Cell 2 Installation Instructions (French)
Silva Cell 2 Summary of Ultimate Load Capacity
How Much Soil To Grow A Big Tree?
Silva Cell Brochure
Silva Cell Brochure UK Version
Silva Cell 2 Tech Sheet
Silva Cell 2 Engineering Report and Testing Conclusions
Soils Beneath Suspended Pavement For Stormwater Control

Silva Cells in Taipei, Taiwan

The United Daily News Plaza is located on one the busiest streets of Taipei. The 6,000 sq. meter plaza creates an urban forest, unifying the two parts of the building—offering a distinctive image within an extremely busy urban context.

Read The Case Study

"Installing the planting soil in the Silva Cells was simple. The open structure at the top made it easy to place the soil in lifts"
Silva Cells at Arizona State University
Silva Cells at Wembley Stadium
Silva Cells both support the tree roots and suspend the pavement that receives millions of footsteps from millions of visitors around the world.

Getting Started

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