Advanced Search

Please click here to take a brief survey

From Nuisance to Asset: The Greening of Alleyways
Sarah Kuck, 22 Jan 09

Alley.pngPicture for yourself a concrete-laden alley, with rainwater pooling in its eroded depressions. Tall buildings border the alley, making it a dark and potentially dangerous place. Constructed for cars, trucks and trash, the space is covered in filth. Few people find reason to walk here, save to toss their trash or take out their dogs.

Most major cities harbor hundreds of miles' worth of alleyways like this. Although originally intended to create easy access to garages and to keep garbage bins and dumpsters hidden from view, many alleys in urban spaces have become more of a hindrance than a utility.

But a movement to redesign alleyways into useful spaces is quickly changing them from nuisance to asset. Green Alley projects are taking off across the United States and Canada as a way to reclaim these spaces as filtration and collection centers for rainwater, open spaces and corridors for community members to walk and play, and green space for creating natural habitat or starting local composting efforts.

In Los Angeles, the Back Alley LA project plans to use “community-based landscape design and environmental engineering to transform nuisance alleys into lush green ribbons linking the city’s diverse neighbors together in a network of public spaces.”

The partnership of public agencies, community-based organizations, and USC’s Center for Sustainable Cities and Keck School of Medicine has conducted action-oriented research on alleys in LA and hope to influence the city to invest in the idea.

While connecting neighbors with open spaces may have been the project's initial inspiration for greening its alleys, Back Alley LA has found numerous benefits for greening alleys:

*Create recreational opportunities. Alleys are a vital land resource in many park-poor neighborhoods, where obesity is a major health problem. Transforming alleys into walkable, bikeable, playable spaces can supplement scarce park resources by using existing underused infrastructure.

*Encourage neighborhood walkability and connectivity. Active, green alleys can provide connections between parks, schools and neighborhood centers. Converted alleys will encourage people to walk rather than drive when making trips to stores, parks, and other nearby destinations.
*Improve water quality and supply. Simple infrastructure changes such as using permeable pavement or adding bioswales in alley will reduce urban runoff, recharge groundwater and improve water quality in streams, rivers, and coastal waters.
*Green the urban matrix. Planting drought-tolerant, California friendly plants in combination with permeable pavement will create shade, retain rainwater, reduce the heat-island effect and provide habitat for native species.
*Reduce Crime. Many residents perceive alleys as unsafe. Improving lighting and making alleys attractive will help address safety concerns and encourage their use.

Back Alley LA has presented its research to policy makers, public officials, and community organizations, and included a series of case studies from other pilot programs already underway in cities like Chicago, Seattle, Baltimore and Vancouver.

Since the end of 2007, for example, the city of Chicago has built almost 50 Green Alleys. The city “has deemed the models so attractive that now every alley it refurbishes will be a green alley.” To encourage other cities take such action, The City of Chicago has created a manual called the The Chicago Green Alley Handbook, which includes some exciting ideas on how to integrate green alleys into downtown areas, neighborhoods and industrial parks. Here's a great page that shows how ideas like bioswales, cisterns, permeable pavement and dark sky lighting can all be incorporated into the picture:


What's happening in this image is a reinvention of the way we think about how we use space. Whether it's a small alley or an entire industrial park, the old ideas of covering every surface with asphalt are dying. What's apparent in the image above is that ideas about how to weave the natural world into the build environment are vibrant, alive and hold major benefits for our society and economy.

Image credit: USC's Center for Sustainable Cities and The Chicago Green Alley Handbook.

Bookmark and Share


The City of Vancouver is also doing interesting things with their alleyways or laneways as they are usually called up here:

Posted by: Corey Burger on 23 Jan 09

wow. that's totally encouraging. far and wide may it be so.

Posted by: Theo T on 24 Jan 09

Post A Comment

Please note that comments will remain open for only 14 days after the article is posted. While previous comments will remain visible, attempts to post new comments after this period will fail. This helps stop comment spam, so your forebearance is appreciated.

The Worldchanging comments are meant to be used for further exploration and evaluation of the ideas covered in our posts. Please note that, while constructive disagreement is fine, insults and abuse are not, and will result in the comment being deleted and a likely ban from commenting. We will also delete at will and without warning comments we believe are designed to disrupt a conversation rather than contribute to it. In short, we'll kill troll posts.

Finally, please note that comments which simply repost copyrighted works or commercial messages will be summarily deleted.

Yes No







MESSAGE (optional):

Search Worldchanging

Worldchanging Newsletter Get good news for a change —
Click here to sign up!


Website Design by Eben Design | Logo Design by Egg Hosting | Hosted by Amazon AWS | Problems with the site? Send email to tech /at/
Architecture for Humanity - all rights reserved except where otherwise indicated.

Find_us_on_facebook_badge.gif twitter-logo.jpg