Custodia Fluminis. Six structures trace the last century of water and industry across northern Italy and Sardinia — from the Vajont and Gleno dams to the still-operating Centrale Bertini and Centrale Semenza, from a decommissioned Alpine intake to a Sardinian mineral washery. Each image marks one station in a lineage of use: founded, inherited, sustained, and at times undone by its own scars.