This shows a point on the curve on Runnymede where it also bottoms out, providing a funneling area for rain water. Apparently, a zero-clearance between asphalt and the soil behind a now-buried curb meets code. Living near this spot, I can attest to the level of stormwater that rushes down the street to this point. Seems to me that quite a lot of it will end up on the sidewalk above the drain, causing further damage to the older portion of the sidewalk. In the winter, the plows will almost certainly ride up over the top of that curb as well. This meets code.