Shown here, I-805 (upper) crosses the 52 freeway (lower) at San Clemente Canyon. Built in 1972, it formed the eastern terminus of the 52 for many years. In 1987, was extended to Convoy St. I-805 also follows the former boundary between the San Diego Mission Lands (east) and San Diego Pueblo Lands (west). This becomes quite evident in the North Park area where Boundary Street runs quite close to the freeway.
The City of San Diego has a fairly easy, although somewhat troublesome to find, webpage that allows citizens to make requests for traffic control devices and more. If you’re looking to get a STOP sign installed, red zone added or removed, or most any change to a roadway (not maintenance related), I recommend sending the City a message via their site. The City does take these requests seriously and will investigate them. If, after their survey, the change is indeed warranted, they may make it happen. Keep in mind that these changes will not happen overnight. Some of my requests took months from start to finish. Just by using that page, I’ve had two stop sign requests and trail crossing signs approved. Anyone can make a positive change to their neighborhood. I’m not special, I just made the requests when I felt those changes would help others and improve safety.