The water management cluster is driven by demand from both public and private sources. These demand drivers (shown in green in the graphic below) perform major environmental work including coastal restoration and protection, urban water management, and subsidence management. What ties them together are that they fund projects that manipulate land and water primarily for the purpose of flood protection. The demand drivers contract with advanced services companies to plan, design, and monitor the work, and then contract with heavy construction companies to implement the work. This section quantifies the economic footprints of several demand drivers of water management.