The rain gardens installed by the City of Ottawa on Sunnyside Avenue between Bronson and Bank are under private contract until July 1st, 2016. The contractor is responsible for plant maintenance and watering. Once the contractor is finished the City will follow up with those members of the community who have volunteered to oversee their care. This follow-up will likely happen in cooperation with the Green Dreamers.
An evaluation by the City of Ottawa of the rain gardens’ traffic calming benefits will begin this summer. This will include a combination of speed surveys, traffic counts, and site observations that will allow us to compare the previous conditions with what exists today.
With respect to the environmental benefits of the rain gardens, they will be monitored for a total of 3 years (starting last fall). This will include water level monitoring within the rain gardens to assess how well they capture, slow down and infiltrate road runoff. Plant health will also be monitored over this period. An annual monitoring report will be prepared by the City which they are happy to share with us – the first report is anticipated for late 2016.
For more information about the rain gardens check out this link from the City of Ottawa.