Skip to Main Content View Text-Only

The City of Portland, Oregon

Portland, Oregon

Welcome to the official web site of the City of Portland, Oregon

General Information: 503-823-4000


1221 SW 4th Avenue, Room 110, Portland, OR 97204

More Contact Info

Subscribe to RSS feed

Most Recent

View Less

Benefits of Trees

April 10, 2012

By David Nguyen

Have you ever wondered what trees do for us, besides looking good? A lot!

According to, a site which allows anyone to make a simple estimation of the benefits of an individual tree, a Noble Fir (native to Oregon!) with a diameter of 30 inches, a tree native to Oregon will catch 4,174 gallons of storm water runoff every year!

Trees act as mini-reservoirs, controlling water runoff by increasing filtration and storage of rain water. This also reduces soil erosion by slowing rainfall before it gets to the soil.

In total, the 30-inch Noble Fir will provides the overall benefits of $184 every year – and the benefit will increase to $212 when the tree grows to 35 inches in size!

Find out more at