ND-v2009 NPDc14: Tree-lined and shaded streets

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  • USGBC

    Excerpted from LEED 2009 for Neighborhood Development

    NPD Credit 14: Tree-lined and shaded streets

    Intent

    To encourage walking, bicycling, and transit use and discourage excessive motoring speeds. To reduce urban heat islandA densely populated area in which pavement and buildings absorb, store, and release solar energy, making the vicinity warmer than it would be if the pavement and buildings were not present. effects, improve air quality, increase evapotranspiration, and reduce cooling loads in buildings.

    Requirements

    Option 1. Tree-lined streets (1 point)

    Design and build the project to provide street trees on both sides of at least 60% of new and existing streets within the project and on the project side of bordering streets, between the vehicle travel way and walkway, at intervals averaging no more than 40 feet (12 meters) (excluding driveways and utility vaults).

    AND/OR

    Option 2. Shaded streets (1 point)

    Trees or other structures provide shade over at least 40% of the length of sidewalks on streets within or contiguous to the project. Trees must provide shade within ten years of landscape installation. Use the estimated crown diameter (the width of the shade if the sun is directly above the tree) to calculate the shaded area.

    AND

    For all projects involving street tree plantings

    Obtain a registered landscape architect’s determination that planting details are appropriate to growing healthy trees, taking into account tree species, root medium, and width and soil volume of planter strips or wells, and that the selected tree species are not considered invasive in the project context according to USDAUnited States Department of Agriculture (USDA) is the U.S. federal department that administers programs that provide services to farmers. or the state agricultural extension service.

2 Comments

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Colin Inderwish RNL
Jun 10 2014
Guest
318 Thumbs Up

Landscape Architect Statement template

I am looking for a letter template that checks all of the approprate boxes for the required registered Landscape Archtitect statement declaring: "the details and tree species are appropriate based on the ratting system."

Or, would it be enough to simply have a registered Landscape Architect, familiar with the project, sign a page with the above statement?

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Eliot Allen LEED AP-ND, Principal, Criterion Planners Jun 10 2014 LEEDuser Expert 4359 Thumbs Up

Tom, I'm unaware of any templates, but all that's required is quoting the credit's third paragraph on a registered landscape architect's letterhead beginning with the words 'Planting details are...'.
Eliot

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