The United States has an extensive network of navigable waterways, including coastlines, rivers, lakes, and canals, yet maritime passenger transport remains vastly underutilized compared to Europe and Asia. Ferry networks in the U.S. primarily serve coastal urban areas, leaving vast inland water routes—such as the Mississippi River and the Great Lakes—largely untapped for passenger and short-haul cargo transit.
At the same time, advances in 3D printing and autonomous navigation are redefining maritime transportation. Large-format additive manufacturing (LFAM) can now produce entire boat hulls, significantly reducing costs, cutting production times, and enabling rapid customization. The U.S. Department of Transportation (DOT) and Federal Transit Administration (FTA) have recognized the need for ferry modernization, allocating nearly $2.3 billion under the Infrastructure Investment and Jobs Act (IIJA) for ferry programs from FY2022-FY2026, with additional grants focused on electrification, rural ferry expansion, and sustainability improvements.
This article examines how 3D-printed autonomous ferries could transform U.S. inland waterways, focusing on economic, environmental, and strategic benefits. The Midwest serves as a case study due to its extensive river and lake networks, but this approach is applicable to other regions where water-based transportation can provide a sustainable alternative to congested roads and bridges.
Feature image courtesy of Roboat.
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