The Panama Canal requires an enormous volume of fresh water to function. A staggering 52 million gallons are released into the Atlantic and Pacific oceans with each of the 35-45 ships that transit the canal daily. The water that facilitates interoceanic transportation and global connection falls as rain across the watershed surrounding the canal and is managed by an extensive system of locks, dams, and hydrographic stations. These technologies -which correspond with the popular understanding of infrastructure as hardware -were largely constructed during the early 20th century. Since the late 1970s, however, administrators and other concerned actors have responded to actual and potential water scarcity within the canal system by developing a managerial approach that integrates engineered technologies and new techniques of land-use planning and environmental regulation across the watershed. Through this process, techno-politics and environmental politics have become increasingly inextricable in the transit zone. Whereas canal administrators previously emphasized the control of water in its liquid state, watershed management emerged as an attempt to manipulate water flows through the legal protection of forests and restriction of agriculture. As forested landscapes have been assigned new infrastructural functions (water storage and regulation), campesino farmers have been charged with a new responsibility (forest conservation) often at odds with their established agricultural practices. Consequently, I bring together scholarship on infrastructure in science and technology studies and political ecology in anthropology and geography to examine why, how, and to what effect landscapes around the canal have been transformed from agricultural frontier to managed watershed. I suggest that the concept of infrastructure is a useful theoretical tool and empirical topic for analyzing the politics of environmental service provision. By paying attention to the contingent history of engineering decisions and the politics embedded in the changing socio-technical system that delivers water to the canal, we can better understand the distributional politics of environmental service provision in Panama today.

Scholars have shown that technical standards play an important role in building global transportation and communication infrastructures, but the environmental standardization efforts associated with infrastructures have received far less attention. Combining scholarship from transportation geography, political ecology, and science and technology studies, we show how global connection is made, maintained, and contested through environmental management practices pegged to infrastructure standards. The Panama Canal expansion, completed in 2016, is a revealing illustration. The expansion has established the New Panamax shipping standard: the maximum allowable dimensions for vessels passing through the canal’s massive new locks. The standard has become a benchmark for port modernization and channel deepening projects along the Atlantic and Gulf Coasts of the United States and beyond. Because the maximum underwater depth, or draft, of ships transiting the new locks is much deeper than before (50 rather than 39.5 feet), geographically dispersed governments, firms, and port authorities have scrambled to reach that standard in hopes of attracting New Panamax ships and associated revenue streams. As this case shows, global transportation depends on the expensive, ecologically destabilizing, and often-contested practices of dredging and disposing of large volumes of sediment and organic matter. By showing how shipping networks and situated politics converge around infrastructure standards, we foreground the uneven environmental burdens and benefits of transportation.

Infrastructures have proven to be useful focal points for understanding social phenomena. The projects of concern in this literature are often considered complete or, if not, their materialization is assumed to be imminent. However, many—if not most—of the engineered artifacts and systems classified as infrastructure exist in states aptly characterized as unbuilt or unfinished. Bringing together scholarship on unbuilt and unfinished infrastructures from anthropology, architecture, geography, history, and science and technology studies, this article examines the ways in which temporalities articulate as planners, builders, politicians, potential users, and opponents negotiate with a project and each another. We develop a typology of heuristics for analyzing the temporalities of the unbuilt and unfinished: shadow histories, present absences, suspended presents, nostalgic futures, and zombies. Each heuristic makes different temporal configurations visible, suggesting novel research questions and methodological approaches.

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