Yes, there are urban rainwater trash bins that collect rainwater for street cleaning, but they’re still more of a niche or pilot-project idea than a standard piece of city infrastructure.
The typical design is basically a public litter bin with a hidden water tank. The lid or an attached canopy catches rain, and a small channel sends it through a coarse filter into the tank. The bin part stays separate so trash doesn’t mix with the water. When the tank fills, a maintenance worker can attach a hose or drain the water into a cleaning cart. Some versions are designed to wash sidewalks, flush gutters, or water nearby plants. The idea is a form of rainwater harvesting built into street furniture.
You’ll see these described as rainwater-harvesting litter bins, rainwater trash bins, smart waste bins with water storage, or stormwater street furniture. Some are purely conceptual, while others have been tested in parks, plazas, bus stops, and eco-districts. They often overlap with smart-city projects, because sensors can report when the bin is full or when the water tank needs attention.
The appeal is obvious: cities use a lot of treated water for street cleaning, and rainwater is free. Capturing it also reduces stormwater runoff, which can carry litter and pollution into drains. In hot, dry places with occasional heavy rain, a well-placed bin can store a useful amount between storms.
But there are real drawbacks. The tank is small, so it won’t replace a water truck. Standing water can smell, breed mosquitoes, or freeze in winter. Street runoff can contain oil, grit, and bacteria, so the water is usually only suitable for washing pavement or irrigation, not for anything people might touch closely. Maintenance is the biggest issue: filters clog, tanks need cleaning, and someone has to empty them regularly.
So, yes, they exist—but mostly as supplements, not as a full solution. If a city wants them, it needs a maintenance plan and a clear use for the water. For now, they’re best seen as a clever piece of street furniture in the right location, not a universal replacement for hydrants, water trucks, or normal trash bins.