Who says community projects can’t be just plain fun? In the town of Bristol in the UK, a local artist named Luke Jerram raised the equivalent of about $10,000 through a crowdfunding campaign to convert a downtown street into a huge water slide. Interestingly, this project was backed by over 530, who each contributed an average of about $11 each.
If you want to do a similar event in your community, you will need the approval of your local municipal government to close a particular street and will likely cost about $10,000, which includes money for materials, street safety, and insurance.
As a alternative to developing the slide on your own, you could simply partner with Slide the Side, an organization in Florida that already has all the slides and logistics worked out. You can check them out at: https://www.slidethecity.com