Cecelia Creek is one of the most degraded urban creek systems in the region. The watershed, covering about 360 hectares in Saanich and Victoria, is 90% covered by impervious surfaces. Most of the creek was enclosed in underground pipes in the early part of the last century. Since that time contaminated runoff from roads and the many industries in the watershed have entered the creek through the stormwater system. In 1996 the Galloping Goose Regional Trail was opened, running alongside Cecelia Creek in what is known as the Cecelia Ravine. This popular trail has brought thousands of people through the area, and public attention was soon focused on improving the creek. The Capital Regional District closed its septage facility in Cecelia Ravine Park in 2000, and agreed to help with the costs of redeveloping the park. Pathways, public access points and lighting were installed, cross-connections between the stormwater drains and sewage lines were repaired and 150 metres of the lower portion of the creek opened to daylight. The Burnside Gorge Community Association (BGCA), conservation groups, local schools, Girl Guides, municipal staff and community volunteers all worked together to restore this section of Cecelia Creek.
In 2007, the new Burnside Gorge Community Centre was opened in Cecelia Ravine Park. More public parks and green space have been created, including the recent addition of a bike skills park and community gardens.
A Management Plan is now in place for Cecelia Ravine Park, and community volunteers and municipal staff are working together to remove and control invasive plants (English ivy, Himalayan blackberry and others) and replace with native riparian vegetation.
In 2012 the CRD Integrated Watershed Management program installed a flow meter and water quality monitoring equipment in Cecelia Creek, which will improve understanding of flow dynamics and contaminant loading in this urban creek. One of the important aspects of this project is demonstrating what is possible when people work together to restore a degraded area. The improved water quality will benefit the wildlife that live in and feed on the intertidal mud flats at the mouth of the creek.