In the early 1900s, the U.S. Army Corps of Engineers built a massive jetty from the shore of North Island almost 1.5 miles into the mouth of San Diego Bay. The Zuniga Shoals Jetty Project was designed to create a deepwater port for vessels to enter and exit. But, it took over a decade to complete, cost far more than anticipated and, according to the San Diego History Center, was an epic failure. … More than one century later, Coronado resident George Mullen, principal of StudioRevolution and co-founder of Sunbreak Ranch, began touting another huge jetty – convinced that a rock seawall along the coast could block Tijuana’s sewage from reaching San Diego County beaches. … Mullen contends the Zuniga Jetty proves that you can affect the movement of sewage with breakwaters and jetties.