White Paper by Deep Root and Kestrel Group Provides Stormwater and Urban Forest Design Guidelines

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Deep Root and Kestrel Design Group released its Lifecycle Cost Analysis: Investment vs. Returns for Healthy Urban Trees. The white paper offers effective stormwater and urban forest planning strategies to ensure the community is getting the most from its investment.

A long-term planning model for the urban forest needs to be implemented.

Deep Root Partners, L.P. and The Kestrel Design Group have released a white paper to help communities make the best investment for stormwater management and urban tree planning. The paper, “Lifecycle Cost Analysis: Investment vs. Returns for Healthy Urban Trees,” is available at no cost from Deep Root, an urban landscape products and services supplier.

Spring thaws and thunderstorms underscore the need for city managers, building developers, civil engineers, landscape architects and architects to integrate effective, low-impact stormwater management strategies into their projects. The Lifecycle Cost Analysis indicates that using “green utilities” like trees for stormwater management can mean a higher upfront investment, but offers substantial savings over the long-term.

The white paper was created to help communities understand the lifecycle costs and benefits of enabling long-term urban tree growth. As a tree matures, the environmental benefits it provides increase exponentially. The Lifecycle Cost-Benefit Analysis compares the costs and benefits of planting trees in a traditional 4 foot x 4 foot tree opening versus in 1,000 cubic feet of a bioretention mix in a suspended pavement system. The calculations were made using i-Tree software and based on data for trees in Minneapolis, MN.

“It makes sense to perform a Lifecycle Cost Analysis of your urban forest to ensure the community is getting the most from its investment – particularly if a project is on the drawing board now,” said Graham Ray, Executive Vice-President of Deep Root.

The average tree in urban environments dies within 13 years due to insufficient soil volumes for root growth. Consequently, they are never able to make a significant ecological contribution to their community, and are replaced constantly. This cycle of planting and replacing trees is expensive and wasteful, especially when one considers the average lifespan of a healthy tree is 100+ years and that the benefits of full-grown trees are considerable and quantifiable.

“A long-term planning model for the urban forest, focused on 50+ year old trees, needs to be implemented. We need to do things differently if we are to pass along the most valuable environmental benefits to future generations,” says Peter MacDonagh of the Kestrel Design Group. “A new way can save time, money and resources down the line. And a life cycle cost analysis can help determine the best course to take.”

Deep Root Partners manufactures and distributes the Silva Cell, a high-quality tree and stormwater management system. Deep Root’s philosophy is to consider the long-term view of a community and its urban forest when designing for street trees, and their team specializes in bringing green infrastructure to the built environment.

About Deep Root Partners, LP:
Deep Root Partners, LP is an urban landscape products manufacturer and services supplier whose aim is to help restore ecosystem services in urban areas using green utilities, such as trees, soil and stormwater. Its leading product line is the Silva Cell, a modular building block for promoting tree growth and green environments. Founded in 1976, Deep Root is now a leading company with passion for enhancing the built environment through design and use of innovative and quality products.

Leda Marritz
Deep Root Partners, L.P.
530 Washington Street
San Francisco, CA 94111

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Leda Marritz
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