Hey, great question. The short answer is: yes, many urban trash cans can be bolted directly into asphalt, but it really depends on the specific model and the surface conditions.
If the trash can is designed with a heavy-duty base and comes with asphalt-rated anchors, you can typically secure it directly into the asphalt using a hammer drill and concrete/asphalt anchors. This is common for lightweight to medium-duty cans in low-traffic areas like parks or sidewalks.
However, if you're dealing with a heavy steel or public-use trash can—especially one that gets a lot of use or might be hit by vehicles—a concrete pad is strongly recommended. Asphalt is less stable than concrete, especially in hot weather when it can soften, causing the bolts to loosen over time. A concrete pad (typically 4 to 6 inches thick) provides a solid, permanent foundation that greatly reduces the risk of the can tipping over or being pried out.
So here's my honest advice: for high-traffic urban environments or any spot where the can must stay absolutely secure, pour a small concrete pad. It's more work upfront but saves you from re-bolting or replacing the can later. If it's a temporary setup or a low-stress location, bolt directly into asphalt—just use quality anchors and check them seasonally.
Let me know what model you're working with, and I can give you more specific steps.