(https://www.sc4devotion.com/forums/proxy.php?request=http%3A%2F%2Fphotos.igougo.com%2Fimages%2Fp172120-Corpus_Christi-Corpus_Christi_Seawall.jpg&hash=b1ae5b378121a11fb68218345dd5a89cc0973aab)
(https://www.sc4devotion.com/forums/proxy.php?request=http%3A%2F%2Fwww.hdrinc.com%2Fsites%2Fall%2Ffiles%2Fimagecache%2Fmedium%2Fcontent%2Fprojects%2Fimages%2F1929-corpus-christi-seawall-842.jpg&hash=5f8e43d21ee279de36bcffa45f0f789431b0d61a)
I lived in Corpus for several years and grew used to seeing these seawalls. I'm not sure if they're even possible for SC4.
Some history: These seawalls were built in the 1920's and they were designed by Gutzon Borglum who is more famously known for Mount Rushmore. (I can't find on the internet any mention of him designing the Corpus Christi Seawalls).