Miami Beach has been the site of 51 major sand replenishment projects since the 1930s, each involving thousands of trucks to haul sand onto the shore. These operations aim to counteract coastal erosion caused by natural forces and rising sea levels. In 2022, the U.S. Army Corps of Engineers spent $40 million to transport 835,000 cubic meters of sand to restore just over three kilometers of coastline. Over the past nearly 90 years, Florida has spent at least $1.9 billion on such projects, with annual budgets ranging from $30 to $50 million. The cost of sand per cubic meter has risen significantly, reaching between $30 and $50, according to Karyn Erickson, president of an engineering firm in Sarasota. The sand used in these projects is no longer sourced from offshore locations but instead comes from inland quarries in Florida, particularly from the Cypresshead Formation, a geological layer stretching from west of Lake Okeechobee to Jacksonville. This process requires large convoys to transport the sand across the state before it is placed on eroding beaches. For example, the 1975 project by the U.S. Army Corps of Engineers reinforced over six kilometers of Miami Beach's shoreline with nearly 14 million cubic meters of sand, costing $80 million. In contrast, a 2022 project covering more than 16 kilometers of beach required 830,000 cubic meters of sand for $40.5 million. Smaller efforts, like a $16 million operation in 2020, aimed to repair damage from Hurricane Irma by depositing 233,000 cubic meters of sand. Experts note that while beach replenishment provides temporary relief, it does not fundamentally alter the natural processes affecting coastlines. Robert Young, who leads a research program on engineered coasts at Western Carolina University, explains that each new project begins on a shoreline that is more vulnerable than the last, as rising seas continue to erode the added material. The 52nd project is already planned, though no specific date has been set. A significant portion of these projects is funded by federal taxes paid by people who live far from the coast, while the primary beneficiaries are high-value coastal areas such as Miami Beach and Palm Beach. Palm Beach, which has received more artificial sand than any other American city, is also preparing for its 51st replenishment. This raises questions about the economic logic of the practice, especially since the annual revenue generated by tourism at U.S. beaches is $36 billion—more than four times the total spent on replenishment projects from 1923 to 2022. However, comparing this approach to the Netherlands' strategy offers a different perspective: the Dutch maintain their coastline as an integrated system, depositing about 12 million cubic meters of sand annually, rather than addressing each eroding area individually.