Putting queer theory in dialogue with critical infrastructure studies, this article proposes a theoretically, methodologically and empirically expansive reading of queer epistemologies. Reiterating the expansiveness of queer theory as an intellectual and political endeavour, the article argues that queering might also be perceived, and engaged with, as a theoretical and practical concern with non-linear, ambiguous, never-fully-knowable textures of subjectivity, self and social life, such as those implicated in mega-infrastructure development. Exploring this, the article develops the case for approaching queering as (un)knowing – an epistemology to foreground ambiguities of the social – intended to build expansive forms of solidarity.