That's an interesting and practical question that many city planners and residents grapple with. There isn't a single magic number for depth, as preventing scavenging is more about integrated design than just depth alone. However, a good rule of thumb is that a bin should be deep enough to make it impossible for a raccoon or dog to reach the bottom while standing on the ground, typically at least 4 feet (about 1.2 meters). But depth is just one part of the puzzle. The most effective bins combine sufficient depth with secure, locking lids—often ones that require hands to open, like a latch or bar. Smooth, slippery interior surfaces can prevent animals from getting a grip to climb out if they fall in. Weighted bottoms or anchoring systems can stop the entire bin from being tipped over. Ultimately, the goal is to create a container where the food reward is simply not worth the immense effort for the animal. This involves making access difficult, retrieval nearly impossible, and the overall experience frustrating enough for the scavenger to seek easier meals elsewhere. Proper community education on securing lid latches is equally crucial to the success of any bin design.
How deep does an urban trash can need to be to prevent scavenging?
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