Green Infrastructure

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 bioswale 1

(Pictured above) Notre Dame Avenue between Ralston Avenue and Clee Steet

The Belmont Pavement Reconstruction Project installed approximately 350 square feet of a new bio-retention facility, new storm drain inlets, 11 American Disabilities Act (ADA) compliant curb ramps, 1,000 feet of ADA complaint sidewalk, and reconstructed approximately 94,000 square feet of pavement.

What is Green Infrastructure?
Green infrastructure are installations of engineered stormwater filtration and flow systems.  When rainwater comes into contact with the earth, various contaminants are absorbed by the rainwater and run off into the major water ways through storm drain systems, rivers, creeks and groundwater.  Green Infrastructure is designed to control and slow the down run off while filtering it through natural vegetation, infiltration through soils or other means of filtration.  Green Infrastructure systems promote pervious surfaces such as soils and pervious pavement rather than impervious surfaces such as concrete and asphalt that promote rainwater run off with no filtration. 

Does the City have Green Infrastructure?
The City of Belmont has incorporated Green Infrastructure into as many private and public projects.  Major developments such as schools and car dealerships are required to filter their rainwater run off through the installation of Green Infrastructure elements. 

What is the City’s Plan for Green Infrastructure?
The City of Belmont’s Green Infrastructure Plan aims to shift future developments in the City from impervious surfaces and traditional storm drain infrastructure (gray) to green.  The plan will direct future infrastructure that directs stormwater runoff directly into storm drains and receiving waters to green infrastructure that slows and filters runoff by dispersing it to vegetated areas, rainwater harvesting and promotes infiltration and evapotranspiration. 

The City is working with the County of San Mateo to develop and adopt a Green Infrastructure Plan as required by the State’s Municipal Regional Permit. 

How can I learn more about Green Infrastructure?
You find out more about Green Infrastructure by going to the San Mateo Countywide Water Pollution Prevention Program at