Construction of the Coastal Road Project in Mumbai, India, began in 2018 with land reclamation projects that destroyed the rocky intertidal zone along the city’s coast. Over the next seven years, the city administration’s attempt to enforce infrastructural lines on a dynamic intertidal space made visible the entangled worlds of politics, social hierarchies, and ecologies in the city. Drawing on the work of anthropologists, historians, and environmental scientists, as well as findings from one month of ethnographic fieldwork conducted in Mumbai from December 2024 to January 2025, this thesis uses the Coastal Road project as a case study on the multilayered impacts of infrastructure projects. Featuring six chapters exploring findings from interviews conducted in different communities, the work first connects colonial frameworks of governing and understanding space to the current practices of infrastructural violence in Mumbai. Then, I present a new framework for understanding the city as a collection of porous bodies and environments, situating sound as a mapping tool unbounded by colonial logics. Traditional modes of understanding space are challenged through the integration of a variety of research methods in a non-traditional format. The thesis features original field drawings, photographs, and sound recordings alongside the text.