San Diego Creek is a 16-mile urban waterway flowing into Upper Newport Bay in Orange County, California, United States. Its watershed covers 112.2 square miles in parts of eight cities, including Irvine, Tustin, and Costa Mesa. From its headwaters in Laguna Woods the creek flows northwest to its confluence with Peters Canyon Wash, where it turns …
San Diego Creek is a 16-mile urban waterway flowing into Upper Newport Bay in Orange County, California, United States. Its watershed covers 112.2 square miles in parts of eight cities, including Irvine, Tustin, and Costa Mesa. From its headwaters in Laguna Woods the creek flows northwest to its confluence with Peters Canyon Wash, where it turns abruptly southwest towards the bay. Most of the creek has been converted to a concrete flood control channel, but it also provides important aquatic and riparian habitat along its course and its tidal estuary.