Tree Inventory

The first GIS street tree inventory was conducted in Brookline, Massachusetts during the spring of 1994 by 97 community volunteers. The inventory program was coordinated by the University of Massachusetts Department of Forestry.

In 2009, the Parks and Open Space Division performed a complete update of all the street trees in the inventory. Approximately 11,041 trees were found along 104 miles of road. Every street tree was examined for species, health, location, diameter at breast height (DBH), dead wood, overhead utilities and management needs.

The following data was produced from the street tree inventory:

Overall Health and Condition of Street Trees

Health / Condition of TreesPercentage of Trees
Good83%
Fair14%
Poor3%
DeadLess than 1%


Species Distribution of Street Trees

Tree SpeciesPercentage of Species Found
Norway Maple21%
Red Oak10%
Linden10%
Sycamore8.6%
Honey Locust7.5%
Red Maple7.3%
Pin Oak6.5%
Ash4.5%
Elm4%
Cherry2.8%
Sweetgum2.3%
Crabapple2%
Ginkgo1.8%
Pear1.7%
Over 40 different species constitute the
remaining percentage trees that line
Brookline's streets.
10%


The tree inventory is an excellent management tool and is used and updated on a regular basis to ensure that all of the information remains accurate.