Green Building Means Green Infrastructure
Do Responsible Public and Private Owners incorporate Green, Sustainable components into infrastructure to better manage stormwater? Absolutely, and locally we have some excellent examples.
First here's the concern, as eloquently expressed by a member of the American Association of American Geographers ("AAG") as part of an annual meeting being held in Seattle this week:
"America's water infrastructure is in crisis. Nationwide, conventional urban and exurban storm water management systems increasingly require extensive replacement and repair, leaving residents susceptible to flooding, infrastructure breakdowns, and contamination risk. However, estimated stormwater systems rehabilitation costs run in the billions, an expense that many municipalities are unable to meet. To address this problem, officials in several U.S. and international cites are increasingly turning to an urban design based alternative, termed green infrastructure to to supplement conventional surface and subsurface drainage systems."
King County has made just such a proposal for the Barton Basin area. KC plans to design and build "green stormwater infrastructure" ("GSI") to control combined sewer overflows. The GSI project will consist of planted areas call "rain gardens" between sidewalks, curbs and others areas in several locations in West Seattle. This is the first "green" project KC Wastewater will implement. The goal is to have these rain gardens trap millions of gallons of water a day that would otherwise enter the combined sewer system.
Seattle Public Utilities is also heavily promoting the use of what it call Natural Drainage Systems projects ("NDS"). These systems also rely on open spaces of trees, smaller plantings, swales, soils and small wetlands to absorb water and filter out contaminants like oil, paint, fertilizers and heavy metals-before those contaminants reach our lakes, streams and Puget Sound.
For you bloggers who may be homeowners and green do-it-yourselfers, SPU also has another link for called "Residential Rainwise Program" that encourages the use of landscape designs that incorporate the use of cisterns, rock filled trenches, grass strips, rain gardens and use of porous pavers (instead concrete or asphalt). The Department of Ecology has a great guide for protecting waterways entitled "Protecting Aquatic Ecosystems."
In case promotion of green infrastructure in recession may not sell with some voters, perhaps some negative reinforcement may help. For a really disastrous local example of what can happen when too much contaminated stormwater and wastewater enter our waterways, take them on a drive to lower Hood Canal on a gorgeous late summer day. Go for a walk on the beach. If the timing is right, they may see the red algae bloom in the otherwise blue water and the dead sea life littering the shoreline.
A sad but poignant reminder why all public and private owners need to work together to fund the protection of our priceless waterways. It is the responsible thing to do.