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Credit: City of Austin, Urban Forestry Program

Critical Root Zone at Mueller Airport Redevelopment | A tree’s critical root zone (CRZ) is an area on the ground which theoretically represents the area containing most of a tree’s roots although trees may have roots well beyond the critical root zone. The CRZ is the area that is most sensitive to impacts and is most important for protection. Since a tree’s root system is essential for sustaining life, Austin City Code dictates that the CRZ be protected during development and construction. A minimum of 50% of the CRZ is required to be left undisturbed to achieve minimal conformance with the regulations. CRZ is calculated using the following formula: CRZ diameter = Tree diameter in inches x 2, convert to feet 74

Profile for Austin Urban Forestry Program

Austin's Urban Forest Plan: A Master Plan for Public Property  

Today, urban forests are increasingly considered an element of a much larger green infrastructure network. Within this network, the urban fo...

Austin's Urban Forest Plan: A Master Plan for Public Property  

Today, urban forests are increasingly considered an element of a much larger green infrastructure network. Within this network, the urban fo...

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