Showing posts with label green roof. Show all posts
Showing posts with label green roof. Show all posts

Wednesday, October 19, 2016

Green Roof in Ottawa

Image from Google Earth

From Metro News:

Ontario Completes Ottawa Courthouse Green Roof (2012)
"A new green roof at the Ottawa Courthouse will reduce energy costs, improve air quality and help Ontario meet its long-term energy conservation goals.  (The roof's green space is bigger than four hockey rinks put together, or one football field.) 
The Ottawa Courthouse's green roof is a living landscape that supports 60 varieties of plants and protects the building's structure from the elements. There are 26 separate green roofs spanning multiple elevations, for a total of 70,000 square feet of green space that will help keep Ottawa's air clean. 
While a conventional roof lasts only 20 to 25 years, green roofs last at least twice as long. The new green roof will save $23,000 a year in energy costs by reducing summer cooling and winter heat loss by 26 per cent."

I found this after reading about Ottawa investing in solar energy on their municipal buildings:

Ottawa gets green with solar energy project (Metro News, September 2016)

"Eight municipal buildings now equipped with solar panels."


Thursday, November 14, 2013

the greening of Chicago


Chicago's Mayor on Top of Green Roof - Image Source

First there was the City Hall's Rooftop Garden (in 2001) and the Green Roof Grant Program which provided grants to both big and small buildings in both the residential and commercial sectors.  By 2008, Chicago was the leading city in the U.S. with the most green roofs according to Green Roofs for Healthy Cities' Annual Green Roof Industry Survey.

Next it was the city's Nature and Wildlife Plan (in 2006) along with a Nature Areas Directory which listed more than 4,800 acres of prairies, savannas, dunes, woodlands, wetlands and potential restoration areas at 98 sites throughout the city. This plan "established a framework to protect and expand ecosystems for the benefit of wildlife and people."

As a follow-up in 2007, Chicago initiated its Green Alley Program which addressed the municipalities infrastructure issues.  The program introduced permeable pavement, bioswales and encouraged residents to consider rain gardens and purchasing rain barrels.

And then after that it was an Urban Forest Agenda in 2009 which would work hand in hand with the already established Nature and Wildlife Plan.  The goal here was to strengthen the urban tree inventory that was already in place and to enhance it with more trees, green infrastructure linking parks and creating programs to enlist local citizens to play a part in their street and park trees.

Now it's the 606 - Chicago's answer to NYC's High Line and the Burnham Wildlife Corridor along the shore of Lake Michigan. 


Present Day 606 - Image Source

First of all the 606, which will ultimately dwarf the New York City's elevated park, will be 2.7 miles long (the High Line is 1 mile) and will encompass 13 acres of land (adding five new parks).  It will connect four neighborhoods in the northwest end of the city.  One other difference to the High Line is that bicyclists will be accommodated on the 606 (or Bloomingdale Trail) whereas only pedestrians are allowed on the High Line.

For the Burnham Wildlife Corridor, located on the city's south side, the Chicago Park District enlisted thousands of volunteers to plant 125,000 trees and shrubs this summer which will provide a resting area for the 5 million birds that migrate through the city every spring and fall.  Many of them, with no place to land, found themselves colliding with the glass highrises downtown. This project will help ensure the safety of Chicago's avian visitors.



Artist Rendering of 606 - Image Source

P.S.  Check out my new "urban wild" nature blog: Wild. Here.(2016 update) It would be amazing to visit this city and profile it at some point for Wild. Here.!

Tuesday, October 18, 2011

roof top garden in georgetown

An Urban Meadow: Georgetown's Hidden Rooftop Garden

- Garden in the Sky -
High above the bustle of Georgetown, an unusual rooftop offers condo residents a prairie of their own.

By Adrian Higgins, Washington Post
Sunday, September 20, 2009

Tom Carroll pulls up the birdsong application on his iPhone, summons the call of a song sparrow and points the device to the meadow that starts about 20 feet from his home.

Sure enough, after a minute or two, an actual song sparrow starts calling back to the digital one. This might be little more than an endearing party trick if Carroll and his wife, Dora Marcus, lived on the edge of a field in, say, upper Montgomery County. But they live a little farther downstream on the Potomac River, in the shadow of Key Bridge. The meadow, perhaps Washington's greatest secret garden, is perched atop a Pepco electrical substation on the Georgetown waterfront.

The straw-colored flower heads of a grass called calamagrostis are just visible for the most observant of motorists on the Whitehurst Freeway, and pedestrians on Key Bridge might glance back to see the fuzzy-topped brick substation, but there is no real public vantage point to view the full sweep of this prairie in the sky. This paradox is heightened during rush hour, when the freeway, Key Bridge and M Street NW are filled with weary drivers unaware of the meadow floating above them.

The grasses give movement in the slightest breeze: The calamagrostis sways like pennants on wires on the meadow's southern edge, and the molinia stems shimmer veil-like on its western side. From high summer into fall, the full meadow goes through subtle color gyrations.

For Carroll and Marcus and their neighbors, the garden presents layers of color and texture, and a kinetic quality augmented by the birds. Mallard ducks, doves, sparrows, goldfinches and other species find both refuge and food here. In this 10,000 square feet of meadow 42 feet in the air, they thrive unmolested by cats, raccoons, people, snakes or floods. Only landscapers have access to the plants, and they must use long ladders. "Nobody picks the flowers," said Marcus, chuckling. And yet from their fifth-floor, two-bedroom condo, it's almost as if you can reach out and stroke the grasses.

Look to the right, and the meadow forms the ground plane for a view of Key Bridge with the Rosslyn skyline behind. Look downriver, and the garden frames a vista of the Potomac curving before the Watergate and the Kennedy Center. With the balcony door open, the apartment is filled with the whooshing of cars on the Whitehurst Freeway and the growl of jets twisting their way to Reagan National Airport. Close the door, with its soundproofed glass, and the scene shifts to one of surreal silence. The calamagrostis continues to dance.

Marcus and Carroll live in the plush condo building known only by its address, 3303 Water Street. The nine-story building is sandwiched between the freeway and the C&O Canal, and contains 72 apartments. It looks like a converted factory or warehouse but is only five years old and stands on a site that used to be occupied by electrical transformers and a canalside hill.

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The garden was planted and is maintained by Washington Landscapes, whose owner, Peter C. Dickens, lives in the condo building, though his view is of the C&O Canal. His 10-member crews spend a day on the roof each month between March and December. The gardeners gain access with long extension ladders tethered to the roof's parapet. Wearing rock-climbing gear for safety, they use ropes to move material on or off the roof. They check the irrigation system and hand-pull weeds and any little trees that the birds have brought in. All the dead top growth of the grasses and perennials is cut and removed in late winter. Maintenance is funded by the residents' condo fees.

In the spring, thousands of daffodils sway in the April breezes. By June, the herbaceous plantings provide a textured carpet of green against the rose pink drifts of Nearly Wild and the oranges and yellows of daylilies. By July, flowers erupt for a summerlong display, including the wispy violet blossoms of the Russian sage, the golden black-eyed Susans and the azure blossoms of the chaste tree. The roses just keep blooming.

When visitors see the meadow "they say you've got your own Serengeti," Marcus said. "They can't get over it."

Adrian Higgins is a staff writer. He can be reached at higginsa@washpost.com.