To most residents of the Pacific Northwest, rivers and waterways are simply part of the fabric of the region—so omnipresent that their value and contributions to the region’s economic framework are often overlooked. For the U.S. Army Corps of Engineers, however, water is the lifeblood of its existence and estuaries are at the heart of its studies. This is reflected in the Corps’ new Seattle District headquarters, where Studio SC’s graphics program underscores the focus of the Corps’ work through a series of river-centric environmental graphics and wayfinding signage components.