Looking from the top of the site

Looking from the top of the site

This morning we went to participate with planting the new rain garden in the Marrickville Golf Course, but were too late.  45 people had come earlier & planted a whopping 1,200 plants.  That’s a fantastic turnout.

Instead we got to wander around this marvelous site.  The rain garden is much larger than I anticipated.  It has two sections.  The first where stormwater comes down into the golf course at the junction of Bruce & Princess Street Marrickville.  Approximately 65% of the Riverside Catchment is impervious surfaces, so a significant amount of stormwater enters the Cooks River from this neighbourhood.

The water first enters a swale, then, moves into a large bowl that has been planted out with grasses with jute netting to stabilize the ground.  From there the water is absorbed into the ground that has a three tiers – sand, then glass sand & at the bottom, rock aggregate.  This slows down the water & cleans it of impurities.  After this process, it is picked up by the stormwater system & taken down to enter into the Cooks River.

Behind the major rain garden is another curved swale.  This swale is to collect overflow of stormwater in a 1 in 100-year flood event.  Between the two sites is a concrete path allowing the community to walk through the area & there is also a very nice wooden bridge.

Council has also planted approximately ten Eucalyptus trees & some Leptospermum.  It is wonderful to see trees added to the golf course.

The rain garden & swale looks fantastic & once the plants have grown it will look even better.  This site will be a good place for schools to visit to learn about stormwater management & the environment.  It will also provide habitat for a range of local wildlife.

Marrickville Council has done a terrific job with the Bruce Street Rain Garden. This rain garden will continue to provide benefit to the environment for many decades to come.  I was very impressed.

The bridge with the rain garden on the right & the swale on the left

The bridge with the rain garden on the right & the swale on the left

New trees have been planted in this area

New trees have been planted in this area

Showing how the rain garden was put together

Showing how the rain garden was put together

 

 

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